225666444123 has 10 divisors (see below), whose sum is σ = 337106663564. Its totient is φ = 150444296028.

The previous prime is 225666443987. The next prime is 225666444127. The reversal of 225666444123 is 321444666522.

It is a happy number.

225666444123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225666444123 - 2²⁶ = 225599335259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225666444127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1393002661 + ... + 1393002822.

Almost surely, 2^225666444123 is an apocalyptic number.

225666444123 is a deficient number, since it is larger than the sum of its proper divisors (111440219441).

225666444123 is an equidigital number, since it uses as much as digits as its factorization.

225666444123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786005495 (or 2786005486 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 45.

The spelling of 225666444123 in words is "two hundred twenty-five billion, six hundred sixty-six million, four hundred forty-four thousand, one hundred twenty-three".