8653297566 has 16 divisors (see below), whose sum is σ = 18217468800. Its totient is φ = 2732620248.

The previous prime is 8653297537. The next prime is 8653297577. The reversal of 8653297566 is 6657923568.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 37952946 + ... + 37953173.

It is an arithmetic number, because the mean of its divisors is an integer number (1138591800).

Almost surely, 2^8653297566 is an apocalyptic number.

8653297566 is an abundant number, since it is smaller than the sum of its proper divisors (9564171234).

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

8653297566 is a wasteful number, since it uses less digits than its factorization.

8653297566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75906143.

The product of its digits is 16329600, while the sum is 57.

The square root of 8653297566 is about 93023.1023241001. The cubic root of 8653297566 is about 2053.0233055760.

The spelling of 8653297566 in words is "eight billion, six hundred fifty-three million, two hundred ninety-seven thousand, five hundred sixty-six".