80907660659 has 4 divisors (see below), whose sum is σ = 92465897904. Its totient is φ = 69349423416.

The previous prime is 80907660649. The next prime is 80907660677. The reversal of 80907660659 is 95606670908.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80907660659 - 2⁸ = 80907660403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80907660619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5779118612 + ... + 5779118625.

It is an arithmetic number, because the mean of its divisors is an integer number (23116474476).

Almost surely, 2^80907660659 is an apocalyptic number.

80907660659 is a deficient number, since it is larger than the sum of its proper divisors (11558237245).

80907660659 is a wasteful number, since it uses less digits than its factorization.

80907660659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11558237244.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 80907660659 in words is "eighty billion, nine hundred seven million, six hundred sixty thousand, six hundred fifty-nine".