225672315720 has 128 divisors (see below), whose sum is σ = 708700078080. Its totient is φ = 57417696000.

The previous prime is 225672315691. The next prime is 225672315721. The reversal of 225672315720 is 27513276522.

It is not an unprimeable number, because it can be changed into a prime (225672315721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163096 + ... + 691335.

It is an arithmetic number, because the mean of its divisors is an integer number (5536719360).

Almost surely, 2^225672315720 is an apocalyptic number.

225672315720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225672315720 is an abundant number, since it is smaller than the sum of its proper divisors (483027762360).

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

225672315720 is a wasteful number, since it uses less digits than its factorization.

225672315720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854547 (or 854543 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 225672315720 in words is "two hundred twenty-five billion, six hundred seventy-two million, three hundred fifteen thousand, seven hundred twenty".