22157554665 has 8 divisors (see below), whose sum is σ = 35452087488. Its totient is φ = 11817362480.

The previous prime is 22157554631. The next prime is 22157554687. The reversal of 22157554665 is 56645575122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22157554665 - 2¹⁴ = 22157538281 is a prime.

It is a Curzon number.

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, 738585141 + ... + 738585170.

It is an arithmetic number, because the mean of its divisors is an integer number (4431510936).

Almost surely, 2^22157554665 is an apocalyptic number.

It is an amenable number.

22157554665 is a deficient number, since it is larger than the sum of its proper divisors (13294532823).

22157554665 is a wasteful number, since it uses less digits than its factorization.

22157554665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477170319.

The product of its digits is 2520000, while the sum is 48.

The spelling of 22157554665 in words is "twenty-two billion, one hundred fifty-seven million, five hundred fifty-four thousand, six hundred sixty-five".