8666516275211 has 2 divisors, whose sum is σ = 8666516275212. Its totient is φ = 8666516275210.

The previous prime is 8666516275199. The next prime is 8666516275301. The reversal of 8666516275211 is 1125726156668.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8666516275211 is a prime.

It is not a weakly prime, because it can be changed into another prime (8666516275111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4333258137605 + 4333258137606.

It is an arithmetic number, because the mean of its divisors is an integer number (4333258137606).

Almost surely, 2^{8666516275211} is an apocalyptic number.

8666516275211 is a deficient number, since it is larger than the sum of its proper divisors (1).

8666516275211 is an equidigital number, since it uses as much as digits as its factorization.

8666516275211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 56.

The spelling of 8666516275211 in words is "eight trillion, six hundred sixty-six billion, five hundred sixteen million, two hundred seventy-five thousand, two hundred eleven".