63645525320304 has 20 divisors (see below), whose sum is σ = 164417607077576. Its totient is φ = 21215175106752.

The previous prime is 63645525320269. The next prime is 63645525320323. The reversal of 63645525320304 is 40302352554636.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1325948444173 = 63645525320304 / (6 + 3 + 6 + 4 + 5 + 5 + 2 + 5 + 3 + 2 + 0 + 3 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662974222039 + ... + 662974222134.

Almost surely, 2^{63645525320304} is an apocalyptic number.

It is an amenable number.

63645525320304 is an abundant number, since it is smaller than the sum of its proper divisors (100772081757272).

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

63645525320304 is a wasteful number, since it uses less digits than its factorization.

63645525320304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325948444184 (or 1325948444178 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 48.

The spelling of 63645525320304 in words is "sixty-three trillion, six hundred forty-five billion, five hundred twenty-five million, three hundred twenty thousand, three hundred four".