How many Soviet republics were there?

P.S. The title of the topic is a bit strange.

Well, perhaps the author wanted to know which period of the USSR's existence was the best, not just to find out their number.
So, here: Lenin (+ a citizen), Stalin, Khrushchev (+ someone there), Brezhnev, some crap (Chernenko, Andropov), Gorbachev.
Although it also depends on the place of residence. Therefore, dividing it so categorically is just "labeling."