(CNN)Nearly every year more people watch the Super Bowl than any other event and many like to watch with some skin in the game.
According to a survey done by the American Gaming Association, this year a record 50.4 million adults (20% of the population) in the US are expected to bet approximately $16 billion on the Super Bowl.
The expected number of bettors is up 61% from last year. That number is helped by Ohio, Maryland, Kansas and Massachusetts all legalizing sports gambling since last year's Super Bowl.
The $16 billion sum is more than double last year's estimates -- it includes money bet online, at casinos, with a bookie, or just casually with friends (like buying a Super Bowl Square).
When it comes to the Super Bowl you can bet on almost anything that has to do with the game and even things that don't have to do with it all.
Here are some of the most fun popular prop bets for Super Bowl LVII. (Note that Bovada is an offshore betting site; the American Gaming Association has urged federal prosecutors to crack down on the operation.)