75664005659 has 18 divisors (see below), whose sum is σ = 83161207692. Its totient is φ = 68273738400.

The previous prime is 75664005649. The next prime is 75664005689. The reversal of 75664005659 is 95650046657.

It is a happy number.

It is not a de Polignac number, because 75664005659 - 2⁴ = 75664005643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75664005659.

It is not an unprimeable number, because it can be changed into a prime (75664005629) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 179724269 + ... + 179724689.

It is an arithmetic number, because the mean of its divisors is an integer number (4620067094).

Almost surely, 2^75664005659 is an apocalyptic number.

75664005659 is a deficient number, since it is larger than the sum of its proper divisors (7497202033).

75664005659 is an frugal number, since it uses more digits than its factorization.

75664005659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 75664005659 in words is "seventy-five billion, six hundred sixty-four million, five thousand, six hundred fifty-nine".