The team this year won a record sixth consecutive drivers' and constructors' championship double.
The next round of the 2019 Formula 1 season is the Brazilian Grand Prix in Sao Paulo on November 17.
"I can't believe it, thanks a lot", Hamilton mentioned over the group radio as he moved out of a tie for 5 titles he held with Argentina's Juan-Manuel Fangio.
With four of his seven career wins coming this season, Bottas is in the middle of his best Formula One campaign.
Hamilton, who secured his sixth world championship this weekend in the U.S, is just a title away from equaling Schumacher's world record of seven world championships.
Once he stepped away from the spotlight, my interest kind of waned, well, until the era of Lewis Hamilton began. Bottas's pole time was set on the red soft compound tyre, but his best Q2 time was established on the yellow medium, which means that this is the tyre he will start the race on tomorrow.
Hamilton, however, warrants his fans' claims as a candidate to be the Greatest Of All Time for not only his natural talent, pure speed, race-craft and statistical success, but also the way his personality and background has attracted a new global demographic to the sport. Yesterday was a tough day. He also shared that he is trying to regain his strength because at this point, he was just "filled with emotions" because he did not think it's possible to last in the race with just one pit stop. "It is an honor to be up there with those greats". "As an athlete, I feel fresh as can be".
"I'm ready for the next race - these next races we won't let up, we'll keep pushing".
Niki Lauda played a key role in bringing Lewis Hamilton to Mercedes and the Briton said his sixth F1 title was for the late Austrian. "He's wearing those rear tyres out and [compared to] Lewis in most races that's really a big problem".
"On my side, I didn't even win one world title - only one title is already is a huge achievement, to win six is just incredible", said the 22-year-old.
After another lap, Bottas used the DRS overtaking help and tried to ease past on the long back when Hamilton was delayed from lapping Toro Rosso of Pierre Gasly. He clearly hopes to use that as a springboard into 2020 and a run at replacing Hamilton as top dog at Mercedes and his stated objective of becoming world champion.
Vettel, for several years Hamilton's fiercest on-track rival, had retired early in the race after his car's suspension had failed on the bumpy Circuit of the Americas.
The two McLarens were seventh and eighth, with Lando Norris edging Carlos Sainz, followed by Ricciardo's teammate Nico Hulkenberg in ninth and the Racing Point of Sergio Perez rounding out the points paying positions in tenth.