80640008659 has 8 divisors (see below), whose sum is σ = 96166967040. Its totient is φ = 66114789576.

The previous prime is 80640008653. The next prime is 80640008663. The reversal of 80640008659 is 95680004608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80640008659 - 2⁷ = 80640008531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80640008653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250434649 + ... + 250434970.

It is an arithmetic number, because the mean of its divisors is an integer number (12020870880).

Almost surely, 2^80640008659 is an apocalyptic number.

80640008659 is a deficient number, since it is larger than the sum of its proper divisors (15526958381).

80640008659 is a wasteful number, since it uses less digits than its factorization.

80640008659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500869649.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 80640008659 in words is "eighty billion, six hundred forty million, eight thousand, six hundred fifty-nine".