Another perfect number, according to Euclid.

No harm checking it though.

So, we have 4 in our collection now. How would the next one look like?
Let me guess ... 

• It will have more than 4 digits. That is a pretty safe bet.
• If someone offers me a prize, maybe I would say 5. Or should I say 6?
• The last digit? Looks like it is going to end in 6.