55800415616 has 64 divisors (see below), whose sum is σ = 121311129600. Its totient is φ = 25355389440.

The previous prime is 55800415603. The next prime is 55800415631. The reversal of 55800415616 is 61651400855.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×55800415616² (a number of 22 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, 6527441 + ... + 6535983.

It is an arithmetic number, because the mean of its divisors is an integer number (1895486400).

Almost surely, 2^55800415616 is an apocalyptic number.

It is an amenable number.

55800415616 is an abundant number, since it is smaller than the sum of its proper divisors (65510713984).

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

55800415616 is a wasteful number, since it uses less digits than its factorization.

55800415616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13207 (or 13195 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 55800415616 in words is "fifty-five billion, eight hundred million, four hundred fifteen thousand, six hundred sixteen".