the number 1, followed by 69 0's
(1000000000000000000000000000000000000000000000000000000000000000000000)
Random idiot: what is the second coolest number?
Me: 1 duovigintillion of course!
A number followed by 69 (nice) zeroes, or 10^69
Person 1: "Hey"
Person 2: "Hey"
Person 1: "You're so fat you weigh 139 duovigintillion pounds"
Person 2: ":("