66732272212266 has 24 divisors (see below), whose sum is σ = 147949068627360. Its totient is φ = 21726786301416.

The previous prime is 66732272212189. The next prime is 66732272212289. The reversal of 66732272212266 is 66221227223766.

66732272212266 is a `hidden beast` number, since 6 + 6 + 7 + 322 + 72 + 21 + 226 + 6 = 666.

It is a super-2 number, since 2×66732272212266² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43108702206 + ... + 43108703753.

It is an arithmetic number, because the mean of its divisors is an integer number (6164544526140).

Almost surely, 2^{66732272212266} is an apocalyptic number.

66732272212266 is an abundant number, since it is smaller than the sum of its proper divisors (81216796415094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66732272212266 is a wasteful number, since it uses less digits than its factorization.

66732272212266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86217406010 (or 86217406007 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 54.

The spelling of 66732272212266 in words is "sixty-six trillion, seven hundred thirty-two billion, two hundred seventy-two million, two hundred twelve thousand, two hundred sixty-six".