22151565715 has 16 divisors (see below), whose sum is σ = 26894196000. Its totient is φ = 17513943552.

The previous prime is 22151565707. The next prime is 22151565727. The reversal of 22151565715 is 51756515122.

It is a cyclic number.

It is not a de Polignac number, because 22151565715 - 2³ = 22151565707 is a prime.

It is a super-2 number, since 2×22151565715² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141016 + ... + 253354.

It is an arithmetic number, because the mean of its divisors is an integer number (1680887250).

Almost surely, 2^22151565715 is an apocalyptic number.

22151565715 is a deficient number, since it is larger than the sum of its proper divisors (4742630285).

22151565715 is a wasteful number, since it uses less digits than its factorization.

22151565715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112806.

The product of its digits is 105000, while the sum is 40.

The spelling of 22151565715 in words is "twenty-two billion, one hundred fifty-one million, five hundred sixty-five thousand, seven hundred fifteen".