225144168851867 has 4 divisors (see below), whose sum is σ = 225214154608536. Its totient is φ = 225074183095200.

The previous prime is 225144168851863. The next prime is 225144168851891. The reversal of 225144168851867 is 768158861441522.

225144168851867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225144168851867 - 2² = 225144168851863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225144168851797 and 225144168851806.

It is not an unprimeable number, because it can be changed into a prime (225144168851863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34992873509 + ... + 34992879942.

It is an arithmetic number, because the mean of its divisors is an integer number (56303538652134).

Almost surely, 2^{225144168851867} is an apocalyptic number.

225144168851867 is a deficient number, since it is larger than the sum of its proper divisors (69985756669).

225144168851867 is an equidigital number, since it uses as much as digits as its factorization.

225144168851867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69985756668.

The product of its digits is 206438400, while the sum is 68.

The spelling of 225144168851867 in words is "two hundred twenty-five trillion, one hundred forty-four billion, one hundred sixty-eight million, eight hundred fifty-one thousand, eight hundred sixty-seven".