650172164 has 12 divisors (see below), whose sum is σ = 1153388124. Its totient is φ = 320632704.

The previous prime is 650172163. The next prime is 650172179. The reversal of 650172164 is 461271056.

It can be written as a sum of positive squares in 2 ways, for example, as 154753600 + 495418564 = 12440^2 + 22258^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 650172164.

It is not an unprimeable number, because it can be changed into a prime (650172161) 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, 1113017 + ... + 1113600.

It is an arithmetic number, because the mean of its divisors is an integer number (96115677).

Almost surely, 2^650172164 is an apocalyptic number.

It is an amenable number.

650172164 is a deficient number, since it is larger than the sum of its proper divisors (503215960).

650172164 is a wasteful number, since it uses less digits than its factorization.

650172164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226694 (or 2226692 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 650172164 is about 25498.4737582468. The cubic root of 650172164 is about 866.3155781738.

The spelling of 650172164 in words is "six hundred fifty million, one hundred seventy-two thousand, one hundred sixty-four".