636072164 has 48 divisors (see below), whose sum is σ = 1372307328. Its totient is φ = 251209728.

The previous prime is 636072149. The next prime is 636072179. The reversal of 636072164 is 461270636.

636072164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (636072149) and next prime (636072179).

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, 299972 + ... + 302084.

It is an arithmetic number, because the mean of its divisors is an integer number (28589736).

Almost surely, 2^636072164 is an apocalyptic number.

It is an amenable number.

636072164 is an abundant number, since it is smaller than the sum of its proper divisors (736235164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636072164 is a wasteful number, since it uses less digits than its factorization.

636072164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 636072164 is about 25220.4711296201. The cubic root of 636072164 is about 860.0072849572.

The spelling of 636072164 in words is "six hundred thirty-six million, seventy-two thousand, one hundred sixty-four".