8466866040817 has 2 divisors, whose sum is σ = 8466866040818. Its totient is φ = 8466866040816.

The previous prime is 8466866040799. The next prime is 8466866040821. The reversal of 8466866040817 is 7180406686648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7819008470001 + 647857570816 = 2796249^2 + 804896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8466866040817 is a prime.

It is not a weakly prime, because it can be changed into another prime (8466866041817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4233433020408 + 4233433020409.

It is an arithmetic number, because the mean of its divisors is an integer number (4233433020409).

Almost surely, 2^{8466866040817} is an apocalyptic number.

It is an amenable number.

8466866040817 is a deficient number, since it is larger than the sum of its proper divisors (1).

8466866040817 is an equidigital number, since it uses as much as digits as its factorization.

8466866040817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74317824, while the sum is 64.

The spelling of 8466866040817 in words is "eight trillion, four hundred sixty-six billion, eight hundred sixty-six million, forty thousand, eight hundred seventeen".