225144455516 has 24 divisors (see below), whose sum is σ = 395423508480. Its totient is φ = 112166593200.

The previous prime is 225144455513. The next prime is 225144455531. The reversal of 225144455516 is 615554441522.

It is a super-2 number, since 2×225144455516² (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 (225144455513) 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, 3288845 + ... + 3356603.

It is an arithmetic number, because the mean of its divisors is an integer number (16475979520).

Almost surely, 2^225144455516 is an apocalyptic number.

It is an amenable number.

225144455516 is a deficient number, since it is larger than the sum of its proper divisors (170279052964).

225144455516 is a wasteful number, since it uses less digits than its factorization.

225144455516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70745 (or 70743 counting only the distinct ones).

The product of its digits is 960000, while the sum is 44.

The spelling of 225144455516 in words is "two hundred twenty-five billion, one hundred forty-four million, four hundred fifty-five thousand, five hundred sixteen".