22508032164 has 48 divisors (see below), whose sum is σ = 55753463808. Its totient is φ = 7042882048.

The previous prime is 22508032163. The next prime is 22508032177. The reversal of 22508032164 is 46123080522.

It is a super-2 number, since 2×22508032164² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22508032163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65907 + ... + 222170.

It is an arithmetic number, because the mean of its divisors is an integer number (1161530496).

Almost surely, 2^22508032164 is an apocalyptic number.

It is an amenable number.

22508032164 is an abundant number, since it is smaller than the sum of its proper divisors (33245431644).

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

22508032164 is a wasteful number, since it uses less digits than its factorization.

22508032164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288484 (or 288482 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 22508032164 in words is "twenty-two billion, five hundred eight million, thirty-two thousand, one hundred sixty-four".