225243817180 has 24 divisors (see below), whose sum is σ = 473038443360. Its totient is φ = 90092493120.

The previous prime is 225243817153. The next prime is 225243817181. The reversal of 225243817180 is 81718342522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225243817181) 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, 63390 + ... + 674170.

It is an arithmetic number, because the mean of its divisors is an integer number (19709935140).

Almost surely, 2^225243817180 is an apocalyptic number.

225243817180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225243817180 is an abundant number, since it is smaller than the sum of its proper divisors (247794626180).

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

225243817180 is a wasteful number, since it uses less digits than its factorization.

225243817180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629229 (or 629227 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 225243817180 in words is "two hundred twenty-five billion, two hundred forty-three million, eight hundred seventeen thousand, one hundred eighty".