666094293331 has 2 divisors, whose sum is σ = 666094293332. Its totient is φ = 666094293330.

The previous prime is 666094293247. The next prime is 666094293377. The reversal of 666094293331 is 133392490666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666094293331 - 2²¹ = 666092196179 is a prime.

It is a super-2 number, since 2×666094293331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (666094299331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333047146665 + 333047146666.

It is an arithmetic number, because the mean of its divisors is an integer number (333047146666).

Almost surely, 2^666094293331 is an apocalyptic number.

666094293331 is a deficient number, since it is larger than the sum of its proper divisors (1).

666094293331 is an equidigital number, since it uses as much as digits as its factorization.

666094293331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3779136, while the sum is 52.

The spelling of 666094293331 in words is "six hundred sixty-six billion, ninety-four million, two hundred ninety-three thousand, three hundred thirty-one".