69! < googol < 70!. Many scientific calculators will overflow at exactly googol, so on these calculators 69! is the maximal factorial number that can be stored.
It is also the highest number ever given to a DTTV physical channel.
In googology Edit
In Greek-based number-naming systems, 69 is associated with prefix "enneahexaconta-", and with prefix "novemsexaginti-" in Latin systems.