63505555550536 has 16 divisors (see below), whose sum is σ = 129897727262640. Its totient is φ = 28866161613840.

The previous prime is 63505555550527. The next prime is 63505555550551.

63505555550536 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 360827020086 + ... + 360827020261.

It is an arithmetic number, because the mean of its divisors is an integer number (8118607953915).

Almost surely, 2^{63505555550536} is an apocalyptic number.

It is an amenable number.

63505555550536 is an abundant number, since it is smaller than the sum of its proper divisors (66392171712104).

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

63505555550536 is a wasteful number, since it uses less digits than its factorization.

63505555550536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721654040364 (or 721654040360 counting only the distinct ones).

The product of its (nonzero) digits is 126562500, while the sum is 58.

The spelling of 63505555550536 in words is "sixty-three trillion, five hundred five billion, five hundred fifty-five million, five hundred fifty thousand, five hundred thirty-six".