80717216507143 has 2 divisors, whose sum is σ = 80717216507144. Its totient is φ = 80717216507142.

The previous prime is 80717216507117. The next prime is 80717216507153. The reversal of 80717216507143 is 34170561271708.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80717216507143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80717216507113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40358608253571 + 40358608253572.

It is an arithmetic number, because the mean of its divisors is an integer number (40358608253572).

Almost surely, 2^{80717216507143} is an apocalyptic number.

80717216507143 is a deficient number, since it is larger than the sum of its proper divisors (1).

80717216507143 is an equidigital number, since it uses as much as digits as its factorization.

80717216507143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 80717216507143 in words is "eighty trillion, seven hundred seventeen billion, two hundred sixteen million, five hundred seven thousand, one hundred forty-three".