63163556544 has 84 divisors (see below), whose sum is σ = 183694219352. Its totient is φ = 19140464640.

The previous prime is 63163556543. The next prime is 63163556569. The reversal of 63163556544 is 44565536136.

63163556544 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 (48).

It is a junction number, because it is equal to n+sod(n) for n = 63163556493 and 63163556502.

It is not an unprimeable number, because it can be changed into a prime (63163556543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1336177 + ... + 1382640.

Almost surely, 2^63163556544 is an apocalyptic number.

63163556544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

63163556544 is an abundant number, since it is smaller than the sum of its proper divisors (120530662808).

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

63163556544 is a wasteful number, since it uses less digits than its factorization.

63163556544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718854 (or 2718833 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 48.

It can be divided in two parts, 631 and 63556544, that added together give a triangular number (63557175 = T₁₁₂₇₄).

The spelling of 63163556544 in words is "sixty-three billion, one hundred sixty-three million, five hundred fifty-six thousand, five hundred forty-four".