63664400261120 has 112 divisors (see below), whose sum is σ = 160826564899440. Its totient is φ = 24125456646144.

The previous prime is 63664400261047. The next prime is 63664400261159. The reversal of 63664400261120 is 2116200446636.

It is a congruent number.

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, 40124567 + ... + 41681046.

Almost surely, 2^{63664400261120} is an apocalyptic number.

It is an amenable number.

63664400261120 is an abundant number, since it is smaller than the sum of its proper divisors (97162164638320).

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

63664400261120 is an equidigital number, since it uses as much as digits as its factorization.

63664400261120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81805663 (or 81805639 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 63664400261120 in words is "sixty-three trillion, six hundred sixty-four billion, four hundred million, two hundred sixty-one thousand, one hundred twenty".