63660447204 has 24 divisors (see below), whose sum is σ = 148577573760. Its totient is φ = 21214930464.

The previous prime is 63660447173. The next prime is 63660447211. The reversal of 63660447204 is 40274406636.

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, 601339 + ... + 699234.

It is an arithmetic number, because the mean of its divisors is an integer number (6190732240).

Almost surely, 2^63660447204 is an apocalyptic number.

It is an amenable number.

63660447204 is an abundant number, since it is smaller than the sum of its proper divisors (84917126556).

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

63660447204 is a wasteful number, since it uses less digits than its factorization.

63660447204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304659 (or 1304657 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 63660447204 in words is "sixty-three billion, six hundred sixty million, four hundred forty-seven thousand, two hundred four".