55858016880 has 80 divisors (see below), whose sum is σ = 192399843360. Its totient is φ = 14895470592.

The previous prime is 55858016869. The next prime is 55858016899. The reversal of 55858016880 is 8861085855.

It is a happy number.

55858016880 is a `hidden beast` number, since 5 + 58 + 580 + 1 + 6 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 12927937 + ... + 12932256.

It is an arithmetic number, because the mean of its divisors is an integer number (2404998042).

Almost surely, 2^55858016880 is an apocalyptic number.

It is an amenable number.

55858016880 is an abundant number, since it is smaller than the sum of its proper divisors (136541826480).

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

55858016880 is a wasteful number, since it uses less digits than its factorization.

55858016880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25860215 (or 25860203 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 54.

The spelling of 55858016880 in words is "fifty-five billion, eight hundred fifty-eight million, sixteen thousand, eight hundred eighty".