165055859955 has 48 divisors (see below), whose sum is σ = 327219931584. Its totient is φ = 75395923200.

The previous prime is 165055859869. The next prime is 165055859971. The reversal of 165055859955 is 559958550561.

165055859955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165055859955 - 2⁸ = 165055859699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 165055859892 and 165055859901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208437 + ... + 611193.

It is an arithmetic number, because the mean of its divisors is an integer number (6817081908).

Almost surely, 2^165055859955 is an apocalyptic number.

165055859955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165055859955 is a deficient number, since it is larger than the sum of its proper divisors (162164071629).

165055859955 is a wasteful number, since it uses less digits than its factorization.

165055859955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404076 (or 404073 counting only the distinct ones).

The product of its (nonzero) digits is 60750000, while the sum is 63.

The spelling of 165055859955 in words is "one hundred sixty-five billion, fifty-five million, eight hundred fifty-nine thousand, nine hundred fifty-five".