663174944 has 12 divisors (see below), whose sum is σ = 1305625734. Its totient is φ = 331587456.

The previous prime is 663174943. The next prime is 663174961. The reversal of 663174944 is 449471366.

663174944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 575040400 + 88134544 = 23980^2 + 9388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 663174895 and 663174904.

It is not an unprimeable number, because it can be changed into a prime (663174943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10362077 + ... + 10362140.

Almost surely, 2^663174944 is an apocalyptic number.

It is an amenable number.

663174944 is a deficient number, since it is larger than the sum of its proper divisors (642450790).

663174944 is a wasteful number, since it uses less digits than its factorization.

663174944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20724227 (or 20724219 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 663174944 is about 25752.1832860828. The cubic root of 663174944 is about 872.0526439053.

The spelling of 663174944 in words is "six hundred sixty-three million, one hundred seventy-four thousand, nine hundred forty-four".