Google has paid out $21M via its bug bounty program since its launch in 2010, with $6.5M paid out last year.
https://www.digitaltrends.com/computing/google-dished-out-65-million-to-bug-squashers-last-year/
https://www.digitaltrends.com/computing/google-dished-out-65-million-to-bug-squashers-last-year/