8559533864672 has 48 divisors (see below), whose sum is σ = 19259236799712. Its totient is φ = 3668317255680.

The previous prime is 8559533864657. The next prime is 8559533864711. The reversal of 8559533864672 is 2764683359558.

It is a junction number, because it is equal to n+sod(n) for n = 8559533864596 and 8559533864605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17279972 + ... + 17768412.

It is an arithmetic number, because the mean of its divisors is an integer number (401234099994).

Almost surely, 2^{8559533864672} is an apocalyptic number.

It is an amenable number.

8559533864672 is an abundant number, since it is smaller than the sum of its proper divisors (10699702935040).

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

8559533864672 is a wasteful number, since it uses less digits than its factorization.

8559533864672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566691 (or 566683 counting only the distinct ones).

The product of its digits is 1306368000, while the sum is 71.

The spelling of 8559533864672 in words is "eight trillion, five hundred fifty-nine billion, five hundred thirty-three million, eight hundred sixty-four thousand, six hundred seventy-two".