55116161600 has 84 divisors (see below), whose sum is σ = 138774336624. Its totient is φ = 21533729280.

The previous prime is 55116161579. The next prime is 55116161603. The reversal of 55116161600 is 616161155.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (55116161603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331754 + ... + 469353.

It is an arithmetic number, because the mean of its divisors is an integer number (1652075436).

Almost surely, 2^55116161600 is an apocalyptic number.

55116161600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55116161600 is an abundant number, since it is smaller than the sum of its proper divisors (83658175024).

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

55116161600 is a wasteful number, since it uses less digits than its factorization.

55116161600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801172 (or 801157 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 55116161600 in words is "fifty-five billion, one hundred sixteen million, one hundred sixty-one thousand, six hundred".