80523717666187 has 2 divisors, whose sum is σ = 80523717666188. Its totient is φ = 80523717666186.

The previous prime is 80523717666061. The next prime is 80523717666239. The reversal of 80523717666187 is 78166671732508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80523717666187 - 2²⁷ = 80523583448459 is a prime.

It is not a weakly prime, because it can be changed into another prime (80523717666487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40261858833093 + 40261858833094.

It is an arithmetic number, because the mean of its divisors is an integer number (40261858833094).

Almost surely, 2^{80523717666187} is an apocalyptic number.

80523717666187 is a deficient number, since it is larger than the sum of its proper divisors (1).

80523717666187 is an equidigital number, since it uses as much as digits as its factorization.

80523717666187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142248960, while the sum is 67.

The spelling of 80523717666187 in words is "eighty trillion, five hundred twenty-three billion, seven hundred seventeen million, six hundred sixty-six thousand, one hundred eighty-seven".