225163621360 has 40 divisors (see below), whose sum is σ = 537654221856. Its totient is φ = 87631246080.

The previous prime is 225163621297. The next prime is 225163621367. The reversal of 225163621360 is 63126361522.

225163621360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225163621367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38031436 + ... + 38037355.

Almost surely, 2^225163621360 is an apocalyptic number.

225163621360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225163621360 is an abundant number, since it is smaller than the sum of its proper divisors (312490600496).

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

225163621360 is a wasteful number, since it uses less digits than its factorization.

225163621360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76068841 (or 76068835 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 225163621360 its reverse (63126361522), we get a palindrome (288289982882).

The spelling of 225163621360 in words is "two hundred twenty-five billion, one hundred sixty-three million, six hundred twenty-one thousand, three hundred sixty".