63550605536 has 36 divisors (see below), whose sum is σ = 137523387456. Its totient is φ = 28886637120.

The previous prime is 63550605527. The next prime is 63550605641.

It is a happy number.

63550605536 is nontrivially palindromic in base 10.

63550605536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8202560 + ... + 8210303.

It is an arithmetic number, because the mean of its divisors is an integer number (3820094096).

Almost surely, 2^63550605536 is an apocalyptic number.

It is an amenable number.

63550605536 is an abundant number, since it is smaller than the sum of its proper divisors (73972781920).

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

63550605536 is a wasteful number, since it uses less digits than its factorization.

63550605536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16412895 (or 16412876 counting only the distinct ones).

The product of its (nonzero) digits is 1215000, while the sum is 44.

The spelling of 63550605536 in words is "sixty-three billion, five hundred fifty million, six hundred five thousand, five hundred thirty-six".