225156435136 has 56 divisors (see below), whose sum is σ = 453640409456. Its totient is φ = 110854656000.

The previous prime is 225156435131. The next prime is 225156435137. The reversal of 225156435136 is 631534651522.

It is a junction number, because it is equal to n+sod(n) for n = 225156435092 and 225156435101.

It is not an unprimeable number, because it can be changed into a prime (225156435131) 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 7 ways as a sum of consecutive naturals, for example, 12859540 + ... + 12877036.

Almost surely, 2^225156435136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225156435136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226820204728).

225156435136 is an abundant number, since it is smaller than the sum of its proper divisors (228483974320).

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

225156435136 is a wasteful number, since it uses less digits than its factorization.

225156435136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20577 (or 20567 counting only the distinct ones).

The product of its digits is 648000, while the sum is 43.

The spelling of 225156435136 in words is "two hundred twenty-five billion, one hundred fifty-six million, four hundred thirty-five thousand, one hundred thirty-six".