63661320677304 has 96 divisors (see below), whose sum is σ = 204344979995520. Its totient is φ = 18188948761056.

The previous prime is 63661320677293. The next prime is 63661320677327. The reversal of 63661320677304 is 40377602316636.

63661320677304 is a `hidden beast` number, since 6 + 3 + 6 + 6 + 1 + 320 + 6 + 7 + 7 + 304 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2339100174 + ... + 2339127389.

It is an arithmetic number, because the mean of its divisors is an integer number (2128593541620).

Almost surely, 2^{63661320677304} is an apocalyptic number.

It is an amenable number.

63661320677304 is an abundant number, since it is smaller than the sum of its proper divisors (140683659318216).

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

63661320677304 is a wasteful number, since it uses less digits than its factorization.

63661320677304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678227591 (or 4678227575 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 54.

The spelling of 63661320677304 in words is "sixty-three trillion, six hundred sixty-one billion, three hundred twenty million, six hundred seventy-seven thousand, three hundred four".