65,535 - that is the limit of unique TCP/IP ports that's currently allowed on most systems (since port number is a 16-bit integer value) If multiple currencies overlap in port numbers, or if future coins use some other mechanism to connect to their peer networks you could always have more, .
In 2007, its founders were ranked as the second most generous philanthropists in America, and Warren Buffett the first. As of May 16, 2013, Bill Gates had donated US$28 billion to the foundation.
Assuming that Bill Gates had a regular bank savings account with an interest rate of 3 %, he would earn around 6.45 million $ a day. Every hour 268.800 $ would be added to his fortune and every minute his bank account shows a plus of 4480 $ . And even every single second of the day Bill Gates makes 74 $ . However, despite all that wealth, Bill Gates does not forget about those, who have not been lucky in their lives. His Bill & Melinda Gates Foundation takes care of a variety of projects in third world countries.