80259566667 has 16 divisors (see below), whose sum is σ = 123079279872. Its totient is φ = 45570489120.

The previous prime is 80259566641. The next prime is 80259566669. The reversal of 80259566667 is 76666595208.

It is a happy number.

It is not a de Polignac number, because 80259566667 - 2⁸ = 80259566411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80259566667.

It is not an unprimeable number, because it can be changed into a prime (80259566669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12168309 + ... + 12174902.

It is an arithmetic number, because the mean of its divisors is an integer number (7692454992).

Almost surely, 2^80259566667 is an apocalyptic number.

80259566667 is a deficient number, since it is larger than the sum of its proper divisors (42819713205).

80259566667 is a wasteful number, since it uses less digits than its factorization.

80259566667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24343378.

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 80259566667 in words is "eighty billion, two hundred fifty-nine million, five hundred sixty-six thousand, six hundred sixty-seven".