Aliko Dangote is the richest person in Africa.Ernest Ankomah/Getty ImagesAliko Dangote, 67, is the richest person in Africa with an estimated net worth of $11.7 billion.He founded the Dangote Group, a cement manufacturer with a presence in 10 African countries.His philanthropic foundation combats malnutrition and has led to a friendship with Bill Gates.Aliko Dangote, 67, first appeared on Forbes' billionaires list in 2008, and he has been ranked Africa's richest person every year since.Dangote earned his billionaire status as the founder of the Dangote Group, Africa's largest cement producer with branches in 10 African countries.Despite his immense wealth — and private jet ownership — Dangote revealed in July that he does not own any homes outside Nigeria, choosing instead to invest in real estate in his home country.Here's a look at Dangote's wealth, philanthropy, and famous friendships.Aliko Dangote is Africa's richest person with an estimated net worth of $11.7 billion, Forbes reported.Aliko Dangote.ERIC PIERMONT/AFP via Getty ImagesDangote is one of the top 200 richest people in the world at 191st on Forbes' billionaires list.Dangote comes from a wealthy family.