165489865054 has 16 divisors (see below), whose sum is σ = 251041142160. Its totient is φ = 81809611840.

The previous prime is 165489865007. The next prime is 165489865063. The reversal of 165489865054 is 450568984561.

It is a super-2 number, since 2×165489865054² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165489864983 and 165489865001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4018512 + ... + 4059484.

It is an arithmetic number, because the mean of its divisors is an integer number (15690071385).

Almost surely, 2^165489865054 is an apocalyptic number.

165489865054 is a deficient number, since it is larger than the sum of its proper divisors (85551277106).

165489865054 is a wasteful number, since it uses less digits than its factorization.

165489865054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63755.

The product of its (nonzero) digits is 41472000, while the sum is 61.

The spelling of 165489865054 in words is "one hundred sixty-five billion, four hundred eighty-nine million, eight hundred sixty-five thousand, fifty-four".