162521140562616 has 32 divisors (see below), whose sum is σ = 443239474262400. Its totient is φ = 49248830473440.

The previous prime is 162521140562563. The next prime is 162521140562621. The reversal of 162521140562616 is 616265041125261.

It is a happy number.

It is a super-2 number, since 2×162521140562616² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307805190196 + ... + 307805190723.

It is an arithmetic number, because the mean of its divisors is an integer number (13851233570700).

Almost surely, 2^{162521140562616} is an apocalyptic number.

It is an amenable number.

162521140562616 is an abundant number, since it is smaller than the sum of its proper divisors (280718333699784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162521140562616 is a wasteful number, since it uses less digits than its factorization.

162521140562616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615610380939 (or 615610380935 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

Adding to 162521140562616 its reverse (616265041125261), we get a palindrome (778786181687877).

The spelling of 162521140562616 in words is "one hundred sixty-two trillion, five hundred twenty-one billion, one hundred forty million, five hundred sixty-two thousand, six hundred sixteen".