165110166164 has 12 divisors (see below), whose sum is σ = 289104314100. Its totient is φ = 82508933568.

The previous prime is 165110166149. The next prime is 165110166197. The reversal of 165110166164 is 461661011561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63954363664 + 101155802500 = 252892^2 + 318050^2 .

It is a super-2 number, since 2×165110166164² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11529329 + ... + 11543640.

It is an arithmetic number, because the mean of its divisors is an integer number (24092026175).

Almost surely, 2^165110166164 is an apocalyptic number.

It is an amenable number.

165110166164 is a deficient number, since it is larger than the sum of its proper divisors (123994147936).

165110166164 is a wasteful number, since it uses less digits than its factorization.

165110166164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23074762 (or 23074760 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 165110166164 in words is "one hundred sixty-five billion, one hundred ten million, one hundred sixty-six thousand, one hundred sixty-four".