82660248893 has 2 divisors, whose sum is σ = 82660248894. Its totient is φ = 82660248892.

The previous prime is 82660248829. The next prime is 82660248901. The reversal of 82660248893 is 39884206628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71039840089 + 11620408804 = 266533^2 + 107798^2 .

It is a cyclic number.

It is not a de Polignac number, because 82660248893 - 2⁶ = 82660248829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82660247893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41330124446 + 41330124447.

It is an arithmetic number, because the mean of its divisors is an integer number (41330124447).

Almost surely, 2^82660248893 is an apocalyptic number.

It is an amenable number.

82660248893 is a deficient number, since it is larger than the sum of its proper divisors (1).

82660248893 is an equidigital number, since it uses as much as digits as its factorization.

82660248893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 82660248893 in words is "eighty-two billion, six hundred sixty million, two hundred forty-eight thousand, eight hundred ninety-three".