Dreaming about winning tonight’s record $1.6 billion Powerball jackpot — the largest prize in U.S. lottery history? You might want to take a look at those steep odds. The overall odds of winning something after buying a $2 ticket are just shy of 1 in 25 — 24.87 to be exact. If you spend an extra $1 to exercise the Power Play option, you can double, triple, quadruple or, on rare occasions, quintuple your winnings on non-jackpot prizes. If you still want to take a shot but have never played, Powerball works like this: Five white balls are drawn out of a drum containing 69 balls. Then one red bal…