The Mega Millions lottery jackpot continues to rise after someone won the $344 million prize on March 25.

After there was no winner in Monday night’s drawing, Powerball’s jackpot has climbed to an estimated $643 million.

If someone wins, they can choose a one-time payout of $273.4 million or take the $605 million prize as a 30-year annuity, putting it among the top 20 biggest Powerball jackpots of all time.