165012164 has 6 divisors (see below), whose sum is σ = 288771294. Its totient is φ = 82506080.

The previous prime is 165012151. The next prime is 165012187. The reversal of 165012164 is 461210561.

165012164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 87572164 + 77440000 = 9358^2 + 8800^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20626517 + ... + 20626524.

It is an arithmetic number, because the mean of its divisors is an integer number (48128549).

Almost surely, 2^165012164 is an apocalyptic number.

It is an amenable number.

165012164 is a deficient number, since it is larger than the sum of its proper divisors (123759130).

165012164 is a wasteful number, since it uses less digits than its factorization.

165012164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41253045 (or 41253043 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 165012164 is about 12845.7060529969. The cubic root of 165012164 is about 548.4941331316.

The spelling of 165012164 in words is "one hundred sixty-five million, twelve thousand, one hundred sixty-four".