51624522542616 has 64 divisors (see below), whose sum is σ = 129628055652480. Its totient is φ = 17132663232000.

The previous prime is 51624522542603. The next prime is 51624522542623. The reversal of 51624522542616 is 61624522542615.

It is a super-2 number, since 2×51624522542616² (a number of 28 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 15 ways as a sum of consecutive naturals, for example, 13124320 + ... + 16598096.

It is an arithmetic number, because the mean of its divisors is an integer number (2025438369570).

Almost surely, 2^{51624522542616} is an apocalyptic number.

It is an amenable number.

51624522542616 is an abundant number, since it is smaller than the sum of its proper divisors (78003533109864).

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

51624522542616 is a wasteful number, since it uses less digits than its factorization.

51624522542616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476504 (or 3476500 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 51.

Subtracting 51624522542616 from its reverse (61624522542615), we obtain a palindrome (9999999999999).

The spelling of 51624522542616 in words is "fifty-one trillion, six hundred twenty-four billion, five hundred twenty-two million, five hundred forty-two thousand, six hundred sixteen".