8653456543568 has 80 divisors (see below), whose sum is σ = 17796275947584. Its totient is φ = 4062139914240.

The previous prime is 8653456543553. The next prime is 8653456543603.

It is a happy number.

8653456543568 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a junction number, because it is equal to n+sod(n) for n = 8653456543498 and 8653456543507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231933971 + ... + 231971277.

Almost surely, 2^{8653456543568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8653456543568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8898137973792).

8653456543568 is an abundant number, since it is smaller than the sum of its proper divisors (9142819404016).

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

8653456543568 is a wasteful number, since it uses less digits than its factorization.

8653456543568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39420 (or 39414 counting only the distinct ones).

The product of its digits is 1244160000, while the sum is 68.

The spelling of 8653456543568 in words is "eight trillion, six hundred fifty-three billion, four hundred fifty-six million, five hundred forty-three thousand, five hundred sixty-eight".