It really is a lot for Japan, if you ever visit ニコニコ動画 (https://nicovideo.jp) and look at the top videos, views pale in comparison to anything on Youtube. Nico video is #28 on Alexa in Japan (Youtube is #2) and is very very popular, it is a Japanese only Youtube site. It is so popular the Nintendo switch app to view the site came out a year before a Youtube app did (7/2017 vs 7/2018).