‘The Sperminator’ Ari Nagel, 50, is retiring on Father’s Day

Even the country’s most prolific baby daddy believes in sperm limits. 

Father of 176, Ari Nagel, better known as “The Sperminator,” is retiring from baby-making, effective this Father’s Day, he revealed to The Post.

The prolific papa – who spread his valuable seed to complete strangers for 17 years across 20 states, 10 countries and five continents – conceded that while he may feel invincible, his sperm is not.