223644452223 has 4 divisors (see below), whose sum is σ = 298192602968. Its totient is φ = 149096301480.

The previous prime is 223644452191. The next prime is 223644452257. The reversal of 223644452223 is 322254446322.

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

It is not a de Polignac number, because 223644452223 - 2⁵ = 223644452191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223644452263) 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, 37274075368 + ... + 37274075373.

It is an arithmetic number, because the mean of its divisors is an integer number (74548150742).

Almost surely, 2^223644452223 is an apocalyptic number.

223644452223 is a deficient number, since it is larger than the sum of its proper divisors (74548150745).

223644452223 is an equidigital number, since it uses as much as digits as its factorization.

223644452223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74548150744.

The product of its digits is 552960, while the sum is 39.

Adding to 223644452223 its reverse (322254446322), we get a palindrome (545898898545).

The spelling of 223644452223 in words is "two hundred twenty-three billion, six hundred forty-four million, four hundred fifty-two thousand, two hundred twenty-three".