22445244416 has 240 divisors, whose sum is σ = 54759161856. Its totient is φ = 8992456704.

The previous prime is 22445244403. The next prime is 22445244431. The reversal of 22445244416 is 61444254422.

It is a self number, because there is not a number n which added to its sum of digits gives 22445244416.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176734145 + ... + 176734271.

Almost surely, 2^22445244416 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 22445244416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27379580928).

22445244416 is an abundant number, since it is smaller than the sum of its proper divisors (32313917440).

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

22445244416 is an equidigital number, since it uses as much as digits as its factorization.

22445244416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 226 counting only the distinct ones).

The product of its digits is 245760, while the sum is 38.

Adding to 22445244416 its reverse (61444254422), we get a palindrome (83889498838).

The spelling of 22445244416 in words is "twenty-two billion, four hundred forty-five million, two hundred forty-four thousand, four hundred sixteen".