63996699669936 has 40 divisors (see below), whose sum is σ = 180354335434944. Its totient is φ = 19392939293760.

The previous prime is 63996699669871. The next prime is 63996699669961.

63996699669936 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60602934766 + ... + 60602935821.

Almost surely, 2^{63996699669936} is an apocalyptic number.

63996699669936 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

63996699669936 is an abundant number, since it is smaller than the sum of its proper divisors (116357635765008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63996699669936 is a wasteful number, since it uses less digits than its factorization.

63996699669936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121205870609 (or 121205870603 counting only the distinct ones).

The product of its digits is 223154201664, while the sum is 96.

The spelling of 63996699669936 in words is "sixty-three trillion, nine hundred ninety-six billion, six hundred ninety-nine million, six hundred sixty-nine thousand, nine hundred thirty-six".