225161663641 has 8 divisors (see below), whose sum is σ = 227208108384. Its totient is φ = 223121058720.

The previous prime is 225161663609. The next prime is 225161663651. The reversal of 225161663641 is 146366161522.

225161663641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225161663641 - 2⁵ = 225161663609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225161663651) 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, 1382475 + ... + 1536736.

It is an arithmetic number, because the mean of its divisors is an integer number (28401013548).

Almost surely, 2^225161663641 is an apocalyptic number.

It is an amenable number.

225161663641 is a deficient number, since it is larger than the sum of its proper divisors (2046444743).

225161663641 is a wasteful number, since it uses less digits than its factorization.

225161663641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919911.

The product of its digits is 311040, while the sum is 43.

The spelling of 225161663641 in words is "two hundred twenty-five billion, one hundred sixty-one million, six hundred sixty-three thousand, six hundred forty-one".