225599828643 has 32 divisors (see below), whose sum is σ = 382818816000. Its totient is φ = 128627025408.

The previous prime is 225599828627. The next prime is 225599828659. The reversal of 225599828643 is 346828995522.

225599828643 is a `hidden beast` number, since 225 + 5 + 9 + 98 + 286 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (225599828627) and next prime (225599828659).

It is not a de Polignac number, because 225599828643 - 2⁴ = 225599828627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (225599028643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1244371 + ... + 1414092.

It is an arithmetic number, because the mean of its divisors is an integer number (11963088000).

Almost surely, 2^225599828643 is an apocalyptic number.

225599828643 is a deficient number, since it is larger than the sum of its proper divisors (157218987357).

225599828643 is a wasteful number, since it uses less digits than its factorization.

225599828643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658928 (or 2658922 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 225599828643 in words is "two hundred twenty-five billion, five hundred ninety-nine million, eight hundred twenty-eight thousand, six hundred forty-three".