22167172664 has 32 divisors (see below), whose sum is σ = 51155015520. Its totient is φ = 8769430656.

The previous prime is 22167172663. The next prime is 22167172667. The reversal of 22167172664 is 46627176122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22167172663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15223979 + ... + 15225434.

It is an arithmetic number, because the mean of its divisors is an integer number (1598594235).

Almost surely, 2^22167172664 is an apocalyptic number.

It is an amenable number.

22167172664 is an abundant number, since it is smaller than the sum of its proper divisors (28987842856).

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

22167172664 is a wasteful number, since it uses less digits than its factorization.

22167172664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30449439 (or 30449435 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The spelling of 22167172664 in words is "twenty-two billion, one hundred sixty-seven million, one hundred seventy-two thousand, six hundred sixty-four".