225666444127 has 2 divisors, whose sum is σ = 225666444128. Its totient is φ = 225666444126.

The previous prime is 225666443987. The next prime is 225666444131. The reversal of 225666444127 is 721444666522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225666444127 - 2¹⁵ = 225666411359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225666444197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112833222063 + 112833222064.

It is an arithmetic number, because the mean of its divisors is an integer number (112833222064).

Almost surely, 2^225666444127 is an apocalyptic number.

225666444127 is a deficient number, since it is larger than the sum of its proper divisors (1).

225666444127 is an equidigital number, since it uses as much as digits as its factorization.

225666444127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 49.

The spelling of 225666444127 in words is "two hundred twenty-five billion, six hundred sixty-six million, four hundred forty-four thousand, one hundred twenty-seven".