68563595520 has 216 divisors, whose sum is σ = 271112202816. Its totient is φ = 15671660544.

The previous prime is 68563595479. The next prime is 68563595531. The reversal of 68563595520 is 2559536586.

68563595520 is a `hidden beast` number, since 6 + 8 + 5 + 63 + 59 + 5 + 520 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344482 + ... + 505761.

Almost surely, 2^68563595520 is an apocalyptic number.

68563595520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68563595520 is an abundant number, since it is smaller than the sum of its proper divisors (202548607296).

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

68563595520 is a wasteful number, since it uses less digits than its factorization.

68563595520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850277 (or 850260 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 54.

The spelling of 68563595520 in words is "sixty-eight billion, five hundred sixty-three million, five hundred ninety-five thousand, five hundred twenty".