225988266618 has 12 divisors (see below), whose sum is σ = 489641244378. Its totient is φ = 75329422200.

The previous prime is 225988266617. The next prime is 225988266641. The reversal of 225988266618 is 816662889522.

225988266618 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 137116905849 + 88871360769 = 370293^2 + 298113^2 .

It is not an unprimeable number, because it can be changed into a prime (225988266611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6277451833 + ... + 6277451868.

Almost surely, 2^225988266618 is an apocalyptic number.

225988266618 is an abundant number, since it is smaller than the sum of its proper divisors (263652977760).

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

225988266618 is a wasteful number, since it uses less digits than its factorization.

225988266618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554903709 (or 12554903706 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The spelling of 225988266618 in words is "two hundred twenty-five billion, nine hundred eighty-eight million, two hundred sixty-six thousand, six hundred eighteen".