32216501202561 has 128 divisors (see below), whose sum is σ = 54792714332160. Its totient is φ = 18533017645056.

The previous prime is 32216501202551. The next prime is 32216501202647. The reversal of 32216501202561 is 16520210561223.

32216501202561 is a `hidden beast` number, since 3 + 2 + 21 + 6 + 50 + 1 + 20 + 2 + 561 = 666.

It is not a de Polignac number, because 32216501202561 - 2⁷ = 32216501202433 is a prime.

It is a super-2 number, since 2×32216501202561² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32216501202541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 523925560 + ... + 523987046.

It is an arithmetic number, because the mean of its divisors is an integer number (428068080720).

Almost surely, 2^{32216501202561} is an apocalyptic number.

It is an amenable number.

32216501202561 is a deficient number, since it is larger than the sum of its proper divisors (22576213129599).

32216501202561 is a wasteful number, since it uses less digits than its factorization.

32216501202561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62120 (or 62114 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 32216501202561 its reverse (16520210561223), we get a palindrome (48736711763784).

The spelling of 32216501202561 in words is "thirty-two trillion, two hundred sixteen billion, five hundred one million, two hundred two thousand, five hundred sixty-one".