220444234423 has 16 divisors (see below), whose sum is σ = 257102560000. Its totient is φ = 188934020856.

The previous prime is 220444234403. The next prime is 220444234433. The reversal of 220444234423 is 324432444022.

It is not a de Polignac number, because 220444234423 - 2⁵ = 220444234391 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 (220444234403) 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 15 ways as a sum of consecutive naturals, for example, 4509808 + ... + 4558426.

It is an arithmetic number, because the mean of its divisors is an integer number (16068910000).

Almost surely, 2^220444234423 is an apocalyptic number.

220444234423 is a deficient number, since it is larger than the sum of its proper divisors (36658325577).

220444234423 is an equidigital number, since it uses as much as digits as its factorization.

220444234423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61859 (or 61845 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 220444234423 its reverse (324432444022), we get a palindrome (544876678445).

The spelling of 220444234423 in words is "two hundred twenty billion, four hundred forty-four million, two hundred thirty-four thousand, four hundred twenty-three".