663592172 has 12 divisors (see below), whose sum is σ = 1172140200. Its totient is φ = 328694976.

The previous prime is 663592129. The next prime is 663592183. The reversal of 663592172 is 271295366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774797 + ... + 775652.

It is an arithmetic number, because the mean of its divisors is an integer number (97678350).

Almost surely, 2^663592172 is an apocalyptic number.

It is an amenable number.

663592172 is a deficient number, since it is larger than the sum of its proper divisors (508548028).

663592172 is a wasteful number, since it uses less digits than its factorization.

663592172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550560 (or 1550558 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 663592172 is about 25760.2828400621. The cubic root of 663592172 is about 872.2354858074.

The spelling of 663592172 in words is "six hundred sixty-three million, five hundred ninety-two thousand, one hundred seventy-two".