225568276566 has 16 divisors (see below), whose sum is σ = 452178444144. Its totient is φ = 75015777024.

The previous prime is 225568276553. The next prime is 225568276597. The reversal of 225568276566 is 665672865522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43409311 + ... + 43414506.

It is an arithmetic number, because the mean of its divisors is an integer number (28261152759).

Almost surely, 2^225568276566 is an apocalyptic number.

225568276566 is an abundant number, since it is smaller than the sum of its proper divisors (226610167578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225568276566 is a wasteful number, since it uses less digits than its factorization.

225568276566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86824255.

The product of its digits is 72576000, while the sum is 60.

The spelling of 225568276566 in words is "two hundred twenty-five billion, five hundred sixty-eight million, two hundred seventy-six thousand, five hundred sixty-six".