63555218982 has 24 divisors (see below), whose sum is σ = 137997859896. Its totient is φ = 21139706016.

The previous prime is 63555218911. The next prime is 63555218989. The reversal of 63555218982 is 28981255536.

It is a happy number.

63555218982 is a `hidden beast` number, since 6 + 3 + 5 + 552 + 1 + 8 + 9 + 82 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63555218989) 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, 3771943 + ... + 3788754.

It is an arithmetic number, because the mean of its divisors is an integer number (5749910829).

Almost surely, 2^63555218982 is an apocalyptic number.

63555218982 is an abundant number, since it is smaller than the sum of its proper divisors (74442640914).

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

63555218982 is a wasteful number, since it uses less digits than its factorization.

63555218982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561172 (or 7561169 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The spelling of 63555218982 in words is "sixty-three billion, five hundred fifty-five million, two hundred eighteen thousand, nine hundred eighty-two".