55800168028580 has 48 divisors (see below), whose sum is σ = 117695033694000. Its totient is φ = 22222037700096.

The previous prime is 55800168028571. The next prime is 55800168028601. The reversal of 55800168028580 is 8582086100855.

It can be written as a sum of positive squares in 8 ways, for example, as 10608726466816 + 45191441561764 = 3257104^2 + 6722458^2 .

It is a super-2 number, since 2×55800168028580² (a number of 28 digits) contains 22 as substring.

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, 213246866 + ... + 213508374.

It is an arithmetic number, because the mean of its divisors is an integer number (2451979868625).

Almost surely, 2^{55800168028580} is an apocalyptic number.

It is an amenable number.

55800168028580 is an abundant number, since it is smaller than the sum of its proper divisors (61894865665420).

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

55800168028580 is a wasteful number, since it uses less digits than its factorization.

55800168028580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308336 (or 308334 counting only the distinct ones).

The product of its (nonzero) digits is 6144000, while the sum is 56.

The spelling of 55800168028580 in words is "fifty-five trillion, eight hundred billion, one hundred sixty-eight million, twenty-eight thousand, five hundred eighty".