305666344226207 has 2 divisors, whose sum is σ = 305666344226208. Its totient is φ = 305666344226206.

The previous prime is 305666344226197. The next prime is 305666344226231. The reversal of 305666344226207 is 702622443666503.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 305666344226207 - 2⁸ = 305666344225951 is a prime.

It is a super-2 number, since 2×305666344226207² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305666344226237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152833172113103 + 152833172113104.

It is an arithmetic number, because the mean of its divisors is an integer number (152833172113104).

Almost surely, 2^{305666344226207} is an apocalyptic number.

305666344226207 is a deficient number, since it is larger than the sum of its proper divisors (1).

305666344226207 is an equidigital number, since it uses as much as digits as its factorization.

305666344226207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 56.

The spelling of 305666344226207 in words is "three hundred five trillion, six hundred sixty-six billion, three hundred forty-four million, two hundred twenty-six thousand, two hundred seven".