The oldest man in the world, who survived the Nazi invasion of Poland by fleeing to Russia, died peacefully in his Upper West Side apartment on Sunday at age 111.

Alexander Imich, credited his long life to eating healthy, exercising when he was younger and staying away from booze.

“I don’t know, I simply didn’t die earlier,” Imich quipped last month to NBC, which reported his death, citing friends. “I have no idea how this happened.”

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