225726855168 has 96 divisors (see below), whose sum is σ = 637191107280. Its totient is φ = 70816235520.

The previous prime is 225726855163. The next prime is 225726855187. The reversal of 225726855168 is 861558627522.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×225726855168² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225726855163) 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, 976123 + ... + 1185018.

Almost surely, 2^225726855168 is an apocalyptic number.

It is an amenable number.

225726855168 is an abundant number, since it is smaller than the sum of its proper divisors (411464252112).

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

225726855168 is a wasteful number, since it uses less digits than its factorization.

225726855168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161183 (or 2161163 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 57.

The spelling of 225726855168 in words is "two hundred twenty-five billion, seven hundred twenty-six million, eight hundred fifty-five thousand, one hundred sixty-eight".