My longest is 16. I know someone with 64 I think. I know it's a portion of a book, don't remember if it was the bible or not.
I've been using auto generated passwords and password manager recently. Before that I just sent some word through an encoder and picked that as password. Simple to remember yet safe (I think). Example with base 64: NovelUpdates Forum -> Tm92ZWxVcGRhdGVzIEZvcnVt
222 character and yes it was joke, but seem the site don't support changing password so Im stuck bringing notepad file for log-in Using RNG is easy but remember it not easy
21, it was just two shorter passwords stuck together to meet the security requirements of some website LOL