22646622660 has 24 divisors (see below), whose sum is σ = 63410543616. Its totient is φ = 6039099360.

The previous prime is 22646622643. The next prime is 22646622703. The reversal of 22646622660 is 6622664622.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188721796 + ... + 188721915.

It is an arithmetic number, because the mean of its divisors is an integer number (2642105984).

Almost surely, 2^22646622660 is an apocalyptic number.

22646622660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22646622660 is an abundant number, since it is smaller than the sum of its proper divisors (40763920956).

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

22646622660 is a wasteful number, since it uses less digits than its factorization.

22646622660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377443723 (or 377443721 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 22646622660 in words is "twenty-two billion, six hundred forty-six million, six hundred twenty-two thousand, six hundred sixty".