55207618560808 has 16 divisors (see below), whose sum is σ = 118302039773280. Its totient is φ = 23660407954608.

The previous prime is 55207618560803. The next prime is 55207618560869. The reversal of 55207618560808 is 80806581670255.

It is a super-2 number, since 2×55207618560808² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55207618560803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492925165666 + ... + 492925165777.

It is an arithmetic number, because the mean of its divisors is an integer number (7393877485830).

Almost surely, 2^{55207618560808} is an apocalyptic number.

It is an amenable number.

55207618560808 is an abundant number, since it is smaller than the sum of its proper divisors (63094421212472).

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

55207618560808 is a wasteful number, since it uses less digits than its factorization.

55207618560808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985850331456 (or 985850331452 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 55207618560808 in words is "fifty-five trillion, two hundred seven billion, six hundred eighteen million, five hundred sixty thousand, eight hundred eight".