22160556531 has 32 divisors (see below), whose sum is σ = 33272440320. Its totient is φ = 14575311072.

The previous prime is 22160556529. The next prime is 22160556559. The reversal of 22160556531 is 13565506122.

22160556531 is a `hidden beast` number, since 2 + 2 + 1 + 60 + 5 + 565 + 31 = 666.

It is not a de Polignac number, because 22160556531 - 2¹ = 22160556529 is a prime.

It is a super-2 number, since 2×22160556531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22160556731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1689906 + ... + 1702968.

It is an arithmetic number, because the mean of its divisors is an integer number (1039763760).

Almost surely, 2^22160556531 is an apocalyptic number.

22160556531 is a deficient number, since it is larger than the sum of its proper divisors (11111883789).

22160556531 is a wasteful number, since it uses less digits than its factorization.

22160556531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13912 (or 13906 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 22160556531 in words is "twenty-two billion, one hundred sixty million, five hundred fifty-six thousand, five hundred thirty-one".