63656334594064 has 15 divisors (see below), whose sum is σ = 123334210109343. Its totient is φ = 31828151340048.

The previous prime is 63656334594031. The next prime is 63656334594077. The reversal of 63656334594064 is 46049543365636.

The square root of 63656334594064 is 7978492.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63656334593987 and 63656334594005.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 30916657 + ... + 32911279.

Almost surely, 2^{63656334594064} is an apocalyptic number.

63656334594064 is the 7978492-nd square number.

It is an amenable number.

63656334594064 is a deficient number, since it is larger than the sum of its proper divisors (59677875515279).

63656334594064 is an frugal number, since it uses more digits than its factorization.

63656334594064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989254 (or 1994625 counting only the distinct ones).

The product of its (nonzero) digits is 503884800, while the sum is 64.

The spelling of 63656334594064 in words is "sixty-three trillion, six hundred fifty-six billion, three hundred thirty-four million, five hundred ninety-four thousand, sixty-four".