666094293247 has 2 divisors, whose sum is σ = 666094293248. Its totient is φ = 666094293246.

The previous prime is 666094293211. The next prime is 666094293331. The reversal of 666094293247 is 742392490666.

It is a happy number.

666094293247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666094293247 - 2¹⁹ = 666093768959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 666094293191 and 666094293200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666034293247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333047146623 + 333047146624.

It is an arithmetic number, because the mean of its divisors is an integer number (333047146624).

Almost surely, 2^666094293247 is an apocalyptic number.

666094293247 is a deficient number, since it is larger than the sum of its proper divisors (1).

666094293247 is an equidigital number, since it uses as much as digits as its factorization.

666094293247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 58.

The spelling of 666094293247 in words is "six hundred sixty-six billion, ninety-four million, two hundred ninety-three thousand, two hundred forty-seven".