8493128166659 has 2 divisors, whose sum is σ = 8493128166660. Its totient is φ = 8493128166658.

The previous prime is 8493128166641. The next prime is 8493128166707. The reversal of 8493128166659 is 9566618213948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8493128166659 is a prime.

It is not a weakly prime, because it can be changed into another prime (8493128166359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4246564083329 + 4246564083330.

It is an arithmetic number, because the mean of its divisors is an integer number (4246564083330).

Almost surely, 2^{8493128166659} is an apocalyptic number.

8493128166659 is a deficient number, since it is larger than the sum of its proper divisors (1).

8493128166659 is an equidigital number, since it uses as much as digits as its factorization.

8493128166659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134369280, while the sum is 68.

The spelling of 8493128166659 in words is "eight trillion, four hundred ninety-three billion, one hundred twenty-eight million, one hundred sixty-six thousand, six hundred fifty-nine".