8566653641 has 16 divisors (see below), whose sum is σ = 10549123200. Its totient is φ = 6774444288.

The previous prime is 8566653631. The next prime is 8566653643. The reversal of 8566653641 is 1463566658.

It is a cyclic number.

It is not a de Polignac number, because 8566653641 - 2¹⁴ = 8566637257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8566653641.

It is not an unprimeable number, because it can be changed into a prime (8566653643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 156305 + ... + 203873.

It is an arithmetic number, because the mean of its divisors is an integer number (659320200).

Almost surely, 2^8566653641 is an apocalyptic number.

It is an amenable number.

8566653641 is a deficient number, since it is larger than the sum of its proper divisors (1982469559).

8566653641 is a wasteful number, since it uses less digits than its factorization.

8566653641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49568.

The product of its digits is 3110400, while the sum is 50.

The square root of 8566653641 is about 92556.2188132164. The cubic root of 8566653641 is about 2046.1481222154.

The spelling of 8566653641 in words is "eight billion, five hundred sixty-six million, six hundred fifty-three thousand, six hundred forty-one".