KEY POINTS:
This week's Lotto's powerball jackpot has hit $20 million - the highest amount in its seven year history.
The odds of winning powerball are 1 in almost 38.4 million.
An extra $1m is up for grabs in Lotto First Division.
NZ Lotteries chief executive Todd McLeay said the $21m prize was creating a buzz around the country.
He said the powerball prize was enough to buy 60 houses or could be put it in the bank and earn $30,000 a week.
The largest Lotto and Powerball prize won was $19,054,243, sold at Pak N Save New Plymouth to a family syndicate in April.
Around half a million extra tickets are sold for big draws.
The maximum jackpot allowed is $30m.
- NZPA
