According to Powerball, the winner can select to have an estimated pretax annuity of $731.1 million paid in 30 payments more than 29 years, or a lump sum of $546.8 million, also prior to taxes.
If the jackpot is not won in a certain drawing, the prize pool carries over to the next drawing, accumulating until there is a jackpot winner.
The location for the Wisconsin ticket has not been released.