82660248817 has 2 divisors, whose sum is σ = 82660248818. Its totient is φ = 82660248816.

The previous prime is 82660248799. The next prime is 82660248821. The reversal of 82660248817 is 71884206628.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48539139856 + 34121108961 = 220316^2 + 184719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82660248817 is a prime.

It is not a weakly prime, because it can be changed into another prime (82660248217) 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, 41330124408 + 41330124409.

It is an arithmetic number, because the mean of its divisors is an integer number (41330124409).

Almost surely, 2^82660248817 is an apocalyptic number.

It is an amenable number.

82660248817 is a deficient number, since it is larger than the sum of its proper divisors (1).

82660248817 is an equidigital number, since it uses as much as digits as its factorization.

82660248817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 82660248817 in words is "eighty-two billion, six hundred sixty million, two hundred forty-eight thousand, eight hundred seventeen".