22156085907 has 24 divisors (see below), whose sum is σ = 34017690096. Its totient is φ = 13847740416.

The previous prime is 22156085893. The next prime is 22156085923. The reversal of 22156085907 is 70958065122.

22156085907 is a `hidden beast` number, since 2 + 2 + 1 + 56 + 0 + 8 + 590 + 7 = 666.

It is not a de Polignac number, because 22156085907 - 2²⁸ = 21887650451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22156085957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242413 + ... + 321054.

It is an arithmetic number, because the mean of its divisors is an integer number (1417403754).

Almost surely, 2^22156085907 is an apocalyptic number.

22156085907 is a deficient number, since it is larger than the sum of its proper divisors (11861604189).

22156085907 is a wasteful number, since it uses less digits than its factorization.

22156085907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563747 (or 563744 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 22156085907 in words is "twenty-two billion, one hundred fifty-six million, eighty-five thousand, nine hundred seven".