82316665302691 has 2 divisors, whose sum is σ = 82316665302692. Its totient is φ = 82316665302690.

The previous prime is 82316665302617. The next prime is 82316665302743. The reversal of 82316665302691 is 19620356661328.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82316665302691 - 2⁷ = 82316665302563 is a prime.

It is not a weakly prime, because it can be changed into another prime (82316665302601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41158332651345 + 41158332651346.

It is an arithmetic number, because the mean of its divisors is an integer number (41158332651346).

Almost surely, 2^{82316665302691} is an apocalyptic number.

82316665302691 is a deficient number, since it is larger than the sum of its proper divisors (1).

82316665302691 is an equidigital number, since it uses as much as digits as its factorization.

82316665302691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 58.

The spelling of 82316665302691 in words is "eighty-two trillion, three hundred sixteen billion, six hundred sixty-five million, three hundred two thousand, six hundred ninety-one".