220532165631 has 6 divisors (see below), whose sum is σ = 318546461480. Its totient is φ = 147021443748.

The previous prime is 220532165597. The next prime is 220532165647. The reversal of 220532165631 is 136561235022.

220532165631 is a `hidden beast` number, since 2 + 2 + 0 + 5 + 3 + 2 + 16 + 5 + 631 = 666.

It is not a de Polignac number, because 220532165631 - 2³⁵ = 186172427263 is a prime.

It is a super-2 number, since 2×220532165631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220532125631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12251786971 + ... + 12251786988.

Almost surely, 2^220532165631 is an apocalyptic number.

220532165631 is a deficient number, since it is larger than the sum of its proper divisors (98014295849).

220532165631 is a wasteful number, since it uses less digits than its factorization.

220532165631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24503573965 (or 24503573962 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 220532165631 in words is "two hundred twenty billion, five hundred thirty-two million, one hundred sixty-five thousand, six hundred thirty-one".