663253376 has 16 divisors (see below), whose sum is σ = 1321325340. Its totient is φ = 331626624.

The previous prime is 663253361. The next prime is 663253417. The reversal of 663253376 is 673352366.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590706 + ... + 2590961.

Almost surely, 2^663253376 is an apocalyptic number.

It is an amenable number.

663253376 is a deficient number, since it is larger than the sum of its proper divisors (658071964).

663253376 is an equidigital number, since it uses as much as digits as its factorization.

663253376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181681 (or 5181669 counting only the distinct ones).

The product of its digits is 408240, while the sum is 41.

The square root of 663253376 is about 25753.7060633999. The cubic root of 663253376 is about 872.0870210268.

The spelling of 663253376 in words is "six hundred sixty-three million, two hundred fifty-three thousand, three hundred seventy-six".