55167218886 has 32 divisors (see below), whose sum is σ = 122654665728. Its totient is φ = 16426962720.

The previous prime is 55167218881. The next prime is 55167218921. The reversal of 55167218886 is 68881276155.

55167218886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55167218881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11405196 + ... + 11410031.

It is an arithmetic number, because the mean of its divisors is an integer number (3832958304).

Almost surely, 2^55167218886 is an apocalyptic number.

55167218886 is an abundant number, since it is smaller than the sum of its proper divisors (67487446842).

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

55167218886 is a wasteful number, since it uses less digits than its factorization.

55167218886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22815276.

The product of its digits is 6451200, while the sum is 57.

The spelling of 55167218886 in words is "fifty-five billion, one hundred sixty-seven million, two hundred eighteen thousand, eight hundred eighty-six".