That number is just an example of a specific category of absurd humor. It’s rare to see that sort of thing applied to numbers though. In other situations, we’ve all seen it. Just repeat any dumb thing a hundred times and suddenly it becomes funny. You could look at pretty much any TV comedy. Pick any decade, like 60’s, 70’s, 90’s or whatever. The rule is very simple: Just repeat it and it becomes funny at some point.