663125744 has 20 divisors (see below), whose sum is σ = 1286736096. Its totient is φ = 331064832.

The previous prime is 663125717. The next prime is 663125777. The reversal of 663125744 is 447521366.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 663125698 and 663125707.

It is a congruent number.

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, 20024 + ... + 41559.

Almost surely, 2^663125744 is an apocalyptic number.

It is an amenable number.

663125744 is a deficient number, since it is larger than the sum of its proper divisors (623610352).

663125744 is a wasteful number, since it uses less digits than its factorization.

663125744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62264 (or 62258 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 663125744 is about 25751.2280095533. The cubic root of 663125744 is about 872.0310779261.

The spelling of 663125744 in words is "six hundred sixty-three million, one hundred twenty-five thousand, seven hundred forty-four".