226666507 has 2 divisors, whose sum is σ = 226666508. Its totient is φ = 226666506.

The previous prime is 226666501. The next prime is 226666511. The reversal of 226666507 is 705666622.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226666507 - 2²⁷ = 92448779 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226666507.

It is not a weakly prime, because it can be changed into another prime (226666501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113333253 + 113333254.

It is an arithmetic number, because the mean of its divisors is an integer number (113333254).

Almost surely, 2^226666507 is an apocalyptic number.

226666507 is a deficient number, since it is larger than the sum of its proper divisors (1).

226666507 is an equidigital number, since it uses as much as digits as its factorization.

226666507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 226666507 is about 15055.4477515616. The cubic root of 226666507 is about 609.7181417538.

The spelling of 226666507 in words is "two hundred twenty-six million, six hundred sixty-six thousand, five hundred seven".