225234502164 has 144 divisors (see below), whose sum is σ = 663395660928. Its totient is φ = 63096493824.

The previous prime is 225234502099. The next prime is 225234502231. The reversal of 225234502164 is 461205432522.

225234502164 is a `hidden beast` number, since 2 + 2 + 523 + 4 + 50 + 21 + 64 = 666.

225234502164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23862454 + ... + 23871890.

It is an arithmetic number, because the mean of its divisors is an integer number (4606914312).

Almost surely, 2^225234502164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225234502164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331697830464).

225234502164 is an abundant number, since it is smaller than the sum of its proper divisors (438161158764).

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

225234502164 is a wasteful number, since it uses less digits than its factorization.

225234502164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294 (or 11289 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 225234502164 its reverse (461205432522), we get a palindrome (686439934686).

The spelling of 225234502164 in words is "two hundred twenty-five billion, two hundred thirty-four million, five hundred two thousand, one hundred sixty-four".