Only seven hours after creating his personal Twitter account, US President Barack Obama had already acquired one million followers and flaunted his comedic skills.

The United States President already had a Twitter account run by his White House staff, but on Monday evening he was given the green light to create a personal account.

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The account comes with the handle @POTUS (President of the United States) and has already amassed one million followers in less than 12 hours.

“Hello, Twitter!” the 53-year-old wrote.

“It’s Barack. Really! Six years in, they’re finally giving me my own account.”

It wasn’t long before famous friends began writing on his wall, with perhaps the best tweet of all coming from predecessor Bill Clinton.

“Does that username stay with the office?” Clinton asked, along with the hashtag #askingforafriend in reference to wife Hillary Clinton who is running for office in 2016.

The president’s brilliant reply has already been retweeted 20,000 times.

“The handle comes with the house. Know anyone interested in @FLOTUS?” Obama wrote, suggesting Mr Clinton could be First Lady of the United States if his wife becomes president.

Zing.

Melbourne 3AW radio presenter Neil Mitchell also tried to get it on the act, tweeting Obama to message him because he was there the night he was elected.

Hi @POTUS I run a radio program in Melb, Australia. I was there the night you were elected. Can you tweet me a msg for my @3AW693 listeners?

— Neil Mitchell (@3AWNeilMitchell) May 18, 2015

No word on whether the leader of the free world has got in touch with Mitchell yet. Poor Neil.

Good question, @billclinton. The handle comes with the house. Know anyone interested in @FLOTUS?

— President Obama (@POTUS) May 18, 2015

It’s about time, @POTUS! –mo

— The First Lady (@FLOTUS) May 18, 2015

Hey @POTUS – Welcome to Twitter. See you around the neighborhood. –vp pic.twitter.com/iaUVFtQVpk

— Vice President Biden (@VP) May 18, 2015

Welcome, Mr. President! https://t.co/JXHxgJNVdB — Twitter (@twitter) May 18, 2015

President Obama. In the Oval Office. Tweeting. #WelcomeToTwitter, @POTUS! http://t.co/SzWXltjNK0 pic.twitter.com/ce4DurwYXj

— The White House (@WhiteHouse) May 18, 2015