lottery Open Forum: Powerball Fever! WAMC Listen Listening... / 50:35 The world's largest lottery jackpot has grown to $1.5 billion...and counting! The $1.5 billion prize would be paid in annual payments over 29 years, or a lump-sum payment of $930 million. Vox Pop : Open Forum on 12/17/13 : Mega Millions Robert S. Donovan/flickr Listen Listening... / The Mega Millions lottery has soared to a whopping $636 million jackpot. By tonight, it could break a record. And if no one wins by the end of this week, could the Mega Million become the Mega “Billion”?