55166155016 has 64 divisors (see below), whose sum is σ = 122904190080. Its totient is φ = 22721656320.

The previous prime is 55166154977. The next prime is 55166155039. The reversal of 55166155016 is 61055166155.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 25475 + ... + 333138.

It is an arithmetic number, because the mean of its divisors is an integer number (1920377970).

Almost surely, 2^55166155016 is an apocalyptic number.

55166155016 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55166155016 is an abundant number, since it is smaller than the sum of its proper divisors (67738035064).

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

55166155016 is a wasteful number, since it uses less digits than its factorization.

55166155016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358734 (or 358730 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 55166155016 in words is "fifty-five billion, one hundred sixty-six million, one hundred fifty-five thousand, sixteen".