Mega Millions jackpot tonight is $636 million! Who’s in?

Mega Millions jackpot tonight is expected to soar to $636 million! This will make it the second largest lottery jackpot in U.S. history.

The top prize had been estimated at $586 million, but lottery officials increased their prediction earlier today because of strong ticket sales. The jackpot now trails only a $656 million Mega Millions pot that was sold in March 2012.

Who's in?