663630076 has 24 divisors (see below), whose sum is σ = 1199681280. Its totient is φ = 320968512.

The previous prime is 663630047. The next prime is 663630091. The reversal of 663630076 is 670036366.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12645 + ... + 38563.

It is an arithmetic number, because the mean of its divisors is an integer number (49986720).

Almost surely, 2^663630076 is an apocalyptic number.

It is an amenable number.

663630076 is a deficient number, since it is larger than the sum of its proper divisors (536051204).

663630076 is a wasteful number, since it uses less digits than its factorization.

663630076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26133 (or 26131 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 37.

The square root of 663630076 is about 25761.0185357645. The cubic root of 663630076 is about 872.2520926862.

The spelling of 663630076 in words is "six hundred sixty-three million, six hundred thirty thousand, seventy-six".