63966983056 has 20 divisors (see below), whose sum is σ = 124165133404. Its totient is φ = 31924368000.

The previous prime is 63966983011. The next prime is 63966983063. The reversal of 63966983056 is 65038966936.

It can be written as a sum of positive squares in 2 ways, for example, as 27927757456 + 36039225600 = 167116^2 + 189840^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63966982985 and 63966983003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3686295 + ... + 3703606.

Almost surely, 2^63966983056 is an apocalyptic number.

It is an amenable number.

63966983056 is a deficient number, since it is larger than the sum of its proper divisors (60198150348).

63966983056 is a wasteful number, since it uses less digits than its factorization.

63966983056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390450 (or 7390444 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 61.

The spelling of 63966983056 in words is "sixty-three billion, nine hundred sixty-six million, nine hundred eighty-three thousand, fifty-six".