63655255636 has 24 divisors (see below), whose sum is σ = 127913890496. Its totient is φ = 27151528320.

The previous prime is 63655255613. The next prime is 63655255637.

63655255636 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63655255637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381301 + ... + 5393116.

Almost surely, 2^63655255636 is an apocalyptic number.

It is an amenable number.

63655255636 is an abundant number, since it is smaller than the sum of its proper divisors (64258634860).

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

63655255636 is a wasteful number, since it uses less digits than its factorization.

63655255636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10774639 (or 10774637 counting only the distinct ones).

The product of its digits is 14580000, while the sum is 52.

The spelling of 63655255636 in words is "sixty-three billion, six hundred fifty-five million, two hundred fifty-five thousand, six hundred thirty-six".