225638435118 has 16 divisors (see below), whose sum is σ = 453979128960. Its totient is φ = 74762435256.

The previous prime is 225638435111. The next prime is 225638435153. The reversal of 225638435118 is 811534836522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225638435111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112593028 + ... + 112595031.

It is an arithmetic number, because the mean of its divisors is an integer number (28373695560).

Almost surely, 2^225638435118 is an apocalyptic number.

225638435118 is an abundant number, since it is smaller than the sum of its proper divisors (228340693842).

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

225638435118 is a wasteful number, since it uses less digits than its factorization.

225638435118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225188231.

The product of its digits is 1382400, while the sum is 48.

The spelling of 225638435118 in words is "two hundred twenty-five billion, six hundred thirty-eight million, four hundred thirty-five thousand, one hundred eighteen".