22566066656 has 36 divisors (see below), whose sum is σ = 50778709128. Its totient is φ = 9670207872.

The previous prime is 22566066631. The next prime is 22566066683. The reversal of 22566066656 is 65666066522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2243270 + ... + 2253306.

It is an arithmetic number, because the mean of its divisors is an integer number (1410519698).

Almost surely, 2^22566066656 is an apocalyptic number.

It is an amenable number.

22566066656 is an abundant number, since it is smaller than the sum of its proper divisors (28212642472).

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

22566066656 is an frugal number, since it uses more digits than its factorization.

22566066656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20091 (or 10046 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 22566066656 in words is "twenty-two billion, five hundred sixty-six million, sixty-six thousand, six hundred fifty-six".