225666265424 has 20 divisors (see below), whose sum is σ = 442141070580. Its totient is φ = 111565344000.

The previous prime is 225666265421. The next prime is 225666265427. The reversal of 225666265424 is 424562666522.

It is an interprime number because it is at equal distance from previous prime (225666265421) and next prime (225666265427).

It can be written as a sum of positive squares in 2 ways, for example, as 85341105424 + 140325160000 = 292132^2 + 374600^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225666265421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79235327 + ... + 79238174.

It is an arithmetic number, because the mean of its divisors is an integer number (22107053529).

Almost surely, 2^225666265424 is an apocalyptic number.

It is an amenable number.

225666265424 is a deficient number, since it is larger than the sum of its proper divisors (216474805156).

225666265424 is a wasteful number, since it uses less digits than its factorization.

225666265424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158473598 (or 158473592 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 50.

The spelling of 225666265424 in words is "two hundred twenty-five billion, six hundred sixty-six million, two hundred sixty-five thousand, four hundred twenty-four".