Easy to knock it when you don’t need it.

Mayor Bloomberg, one of the richest men in the country, compared Social Security to a Ponzi scheme in an interview with Time magazine.

When asked how Ponzi fiend Bernard Madoff got away with his epic $65 billion scam for so long, Hizzoner said, “Nobody cared. Everybody just thought, where did Madoff get the idea?”

“A cynic would say Social Security, [though] I would never say that. But it’s exactly the same thing, isn’t it?”

The interview, in which the mayor also gives advice on his habit of drinking beer with ice, is part of the magazine’s 10 Questions section. It will hit newsstands tomorrow.