Mehmet Emin Karamehmet whose fortune reaches $4.3 billion is the wealthiest billionaire in this Turkish city. Number of billionaires: 34. Mumbai, India. Mumbai is the most populous city in India and the largest metropolitan city of India. .... Those that may qualify for premium financing for life insurance are individuals between the ages of 70 and 85 with a net worth of at least $1 million. 4 Key Reasons to Consider Premium Financing: 1. Estate planning 2. ...