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One game that could accommodate that number of players (provided you were willing to break the individuals up into multiple teams would be a Wits and Wagers style trivia game). If you broke into 10 person teams, you would have 14 teams. Wits and Wagers is a trivia game where the answers are all numeric (or dates). What I believe makes Wits and Wagers work ...
The only massive group game I can think of is Ultimate Werewolf, which plays up to 68 players. With that amount of people, you'll want at least two moderators each. You can split your 140-person party into two large groups with a copy of the game each.
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