80111850666 has 16 divisors (see below), whose sum is σ = 167189949504. Its totient is φ = 25542908864.

The previous prime is 80111850653. The next prime is 80111850671. The reversal of 80111850666 is 66605811108.

It is a Curzon number.

It is an unprimeable number.

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, 290260191 + ... + 290260466.

It is an arithmetic number, because the mean of its divisors is an integer number (10449371844).

Almost surely, 2^80111850666 is an apocalyptic number.

80111850666 is an abundant number, since it is smaller than the sum of its proper divisors (87078098838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80111850666 is a wasteful number, since it uses less digits than its factorization.

80111850666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580520685.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 80111850666 in words is "eighty billion, one hundred eleven million, eight hundred fifty thousand, six hundred sixty-six".