80685377163 has 12 divisors (see below), whose sum is σ = 117196639560. Its totient is φ = 53489746176.

The previous prime is 80685377141. The next prime is 80685377177. The reversal of 80685377163 is 36177358608.

It is not a de Polignac number, because 80685377163 - 2²⁶ = 80618268299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80685377363) 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 11 ways as a sum of consecutive naturals, for example, 25040406 + ... + 25043627.

It is an arithmetic number, because the mean of its divisors is an integer number (9766386630).

Almost surely, 2^80685377163 is an apocalyptic number.

80685377163 is a deficient number, since it is larger than the sum of its proper divisors (36511262397).

80685377163 is a wasteful number, since it uses less digits than its factorization.

80685377163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50084218 (or 50084215 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 80685377163 in words is "eighty billion, six hundred eighty-five million, three hundred seventy-seven thousand, one hundred sixty-three".