22638628662 has 16 divisors (see below), whose sum is σ = 48760123440. Its totient is φ = 6965731872.

The previous prime is 22638628651. The next prime is 22638628667. The reversal of 22638628662 is 26682683622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22638628667) 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, 145119337 + ... + 145119492.

It is an arithmetic number, because the mean of its divisors is an integer number (3047507715).

Almost surely, 2^22638628662 is an apocalyptic number.

22638628662 is an abundant number, since it is smaller than the sum of its proper divisors (26121494778).

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

22638628662 is a wasteful number, since it uses less digits than its factorization.

22638628662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290238847.

The product of its digits is 3981312, while the sum is 51.

The spelling of 22638628662 in words is "twenty-two billion, six hundred thirty-eight million, six hundred twenty-eight thousand, six hundred sixty-two".