Prosper Munemo , 44, was the only winner of the £71,057,439 prize on Friday.
He told a news conference he will retire after 24 years as a metal worker in London , travel the world and buy a home with a swimming pool.
Being single, he denied he was suddenly more attractive overnight, saying: “Just my wallet is.”
Mr Munemo is the 15th biggest winner in UK lottery history.
He bought his ticket from the Co-op store in Ledbury Road, London, and initially thought he must be just one of many to share the jackpot.
Despite hearing the winning “ping” sound from the app on his phone when he checked his numbers, he had to look more than once.