659172868 has 12 divisors (see below), whose sum is σ = 1154405952. Its totient is φ = 329342600.

The previous prime is 659172863. The next prime is 659172869. The reversal of 659172868 is 868271956.

It is not an unprimeable number, because it can be changed into a prime (659172863) 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, 54808 + ... + 65743.

It is an arithmetic number, because the mean of its divisors is an integer number (96200496).

Almost surely, 2^659172868 is an apocalyptic number.

It is an amenable number.

659172868 is a deficient number, since it is larger than the sum of its proper divisors (495233084).

659172868 is a wasteful number, since it uses less digits than its factorization.

659172868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121922 (or 121920 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 659172868 is about 25674.3620758141. The cubic root of 659172868 is about 870.2949050888.

The spelling of 659172868 in words is "six hundred fifty-nine million, one hundred seventy-two thousand, eight hundred sixty-eight".