63536663536 has 40 divisors (see below), whose sum is σ = 128943175680. Its totient is φ = 30271513536.

The previous prime is 63536663429. The next prime is 63536663539.

63536663536 is nontrivially palindromic in base 10.

63536663536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63536663536² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63536663539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231456 + ... + 425023.

It is an arithmetic number, because the mean of its divisors is an integer number (3223579392).

Almost surely, 2^63536663536 is an apocalyptic number.

It is an amenable number.

63536663536 is an abundant number, since it is smaller than the sum of its proper divisors (65406512144).

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

63536663536 is a wasteful number, since it uses less digits than its factorization.

63536663536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656773 (or 656767 counting only the distinct ones).

The product of its digits is 15746400, while the sum is 52.

The spelling of 63536663536 in words is "sixty-three billion, five hundred thirty-six million, six hundred sixty-three thousand, five hundred thirty-six".