63557755775536 has 40 divisors (see below), whose sum is σ = 142240218146064. Its totient is φ = 27190483752960.

The previous prime is 63557755775467. The next prime is 63557755775671.

63557755775536 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, 10621279725 + ... + 10621285708.

Almost surely, 2^{63557755775536} is an apocalyptic number.

It is an amenable number.

63557755775536 is an abundant number, since it is smaller than the sum of its proper divisors (78682462370528).

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

63557755775536 is a wasteful number, since it uses less digits than its factorization.

63557755775536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242565469 (or 21242565463 counting only the distinct ones).

The product of its digits is 12155062500, while the sum is 76.

The spelling of 63557755775536 in words is "sixty-three trillion, five hundred fifty-seven billion, seven hundred fifty-five million, seven hundred seventy-five thousand, five hundred thirty-six".