Mejillion

The mejillion is equal to \(10^{3\cdot10^{3\cdot 10^{3,000,000}} + 3}\), or \(10^{3\cdot10^{3\cdot 10^{3\text{ million}}} + 3}\). The term was coined by Jonathan Bowers. In his naming system, it is the smallest positive integer with the letter "j" in the name.