63583656964 has 9 divisors (see below), whose sum is σ = 111272282247. Its totient is φ = 31791576324.

The previous prime is 63583656931. The next prime is 63583656991. The reversal of 63583656964 is 46965638536.

The square root of 63583656964 is 252158.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 441277 + ... + 567355.

Almost surely, 2^63583656964 is an apocalyptic number.

63583656964 is the 252158-th square number.

It is an amenable number.

63583656964 is a deficient number, since it is larger than the sum of its proper divisors (47688625283).

63583656964 is an frugal number, since it uses more digits than its factorization.

63583656964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252162 (or 126081 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 61.

The spelling of 63583656964 in words is "sixty-three billion, five hundred eighty-three million, six hundred fifty-six thousand, nine hundred sixty-four".