82316856566201 has 2 divisors, whose sum is σ = 82316856566202. Its totient is φ = 82316856566200.

The previous prime is 82316856566167. The next prime is 82316856566261. The reversal of 82316856566201 is 10266565861328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76093328476201 + 6223528090000 = 8723149^2 + 2494700^2 .

It is a cyclic number.

It is not a de Polignac number, because 82316856566201 - 2⁶ = 82316856566137 is a prime.

It is not a weakly prime, because it can be changed into another prime (82316856566261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41158428283100 + 41158428283101.

It is an arithmetic number, because the mean of its divisors is an integer number (41158428283101).

Almost surely, 2^{82316856566201} is an apocalyptic number.

It is an amenable number.

82316856566201 is a deficient number, since it is larger than the sum of its proper divisors (1).

82316856566201 is an equidigital number, since it uses as much as digits as its factorization.

82316856566201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 82316856566201 in words is "eighty-two trillion, three hundred sixteen billion, eight hundred fifty-six million, five hundred sixty-six thousand, two hundred one".