165110166165 has 16 divisors (see below), whose sum is σ = 301915732608. Its totient is φ = 75478933056.

The previous prime is 165110166149. The next prime is 165110166197. The reversal of 165110166165 is 561661011561.

It is not a de Polignac number, because 165110166165 - 2⁴ = 165110166149 is a prime.

It is a super-2 number, since 2×165110166165² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 786238782 + ... + 786238991.

It is an arithmetic number, because the mean of its divisors is an integer number (18869733288).

Almost surely, 2^165110166165 is an apocalyptic number.

165110166165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165110166165 is a deficient number, since it is larger than the sum of its proper divisors (136805566443).

165110166165 is a wasteful number, since it uses less digits than its factorization.

165110166165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572477788.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 165110166165 in words is "one hundred sixty-five billion, one hundred ten million, one hundred sixty-six thousand, one hundred sixty-five".