165500164 has 12 divisors (see below), whose sum is σ = 289853788. Its totient is φ = 82684800.

The previous prime is 165500161. The next prime is 165500183. The reversal of 165500164 is 461005561.

It can be written as a sum of positive squares in 2 ways, for example, as 126337600 + 39162564 = 11240^2 + 6258^2 .

It is not an unprimeable number, because it can be changed into a prime (165500161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10377 + ... + 20944.

Almost surely, 2^165500164 is an apocalyptic number.

It is an amenable number.

165500164 is a deficient number, since it is larger than the sum of its proper divisors (124353624).

165500164 is a wasteful number, since it uses less digits than its factorization.

165500164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32646 (or 32644 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 165500164 is about 12864.6867043080. The cubic root of 165500164 is about 549.0342987829.

The spelling of 165500164 in words is "one hundred sixty-five million, five hundred thousand, one hundred sixty-four".