663938496 has 84 divisors (see below), whose sum is σ = 2049472152. Its totient is φ = 204286464.

The previous prime is 663938479. The next prime is 663938551. The reversal of 663938496 is 694839366.

It is a happy number.

663938496 is a `hidden beast` number, since 6 + 63 + 93 + 8 + 496 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36846 + ... + 51821.

It is an arithmetic number, because the mean of its divisors is an integer number (24398478).

Almost surely, 2^663938496 is an apocalyptic number.

It is an amenable number.

663938496 is an abundant number, since it is smaller than the sum of its proper divisors (1385533656).

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

663938496 is a wasteful number, since it uses less digits than its factorization.

663938496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88698 (or 88685 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The square root of 663938496 is about 25767.0040167653. The cubic root of 663938496 is about 872.3871972349.

The spelling of 663938496 in words is "six hundred sixty-three million, nine hundred thirty-eight thousand, four hundred ninety-six".