665100164 has 12 divisors (see below), whose sum is σ = 1201471488. Its totient is φ = 321822600.

The previous prime is 665100157. The next prime is 665100169. The reversal of 665100164 is 461001566.

665100164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (665100169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2681732 + ... + 2681979.

It is an arithmetic number, because the mean of its divisors is an integer number (100122624).

Almost surely, 2^665100164 is an apocalyptic number.

It is an amenable number.

665100164 is a deficient number, since it is larger than the sum of its proper divisors (536371324).

665100164 is a wasteful number, since it uses less digits than its factorization.

665100164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5363746 (or 5363744 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 665100164 is about 25789.5359399893. The cubic root of 665100164 is about 872.8956950454.

The spelling of 665100164 in words is "six hundred sixty-five million, one hundred thousand, one hundred sixty-four".