224444666657 has 2 divisors, whose sum is σ = 224444666658. Its totient is φ = 224444666656.

The previous prime is 224444666639. The next prime is 224444666737. The reversal of 224444666657 is 756666444422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171194027536 + 53250639121 = 413756^2 + 230761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224444666657 is a prime.

It is not a weakly prime, because it can be changed into another prime (224444666617) 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, 112222333328 + 112222333329.

It is an arithmetic number, because the mean of its divisors is an integer number (112222333329).

Almost surely, 2^224444666657 is an apocalyptic number.

It is an amenable number.

224444666657 is a deficient number, since it is larger than the sum of its proper divisors (1).

224444666657 is an equidigital number, since it uses as much as digits as its factorization.

224444666657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46448640, while the sum is 56.

The spelling of 224444666657 in words is "two hundred twenty-four billion, four hundred forty-four million, six hundred sixty-six thousand, six hundred fifty-seven".