22541144450 has 36 divisors (see below), whose sum is σ = 46084543890. Its totient is φ = 8196777600.

The previous prime is 22541144449. The next prime is 22541144459. The reversal of 22541144450 is 5444114522.

It can be written as a sum of positive squares in 3 ways, for example, as 17143450489 + 5397693961 = 130933^2 + 73469^2 .

It is not an unprimeable number, because it can be changed into a prime (22541144459) 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 17 ways as a sum of consecutive naturals, for example, 1856855 + ... + 1868954.

Almost surely, 2^22541144450 is an apocalyptic number.

22541144450 is an abundant number, since it is smaller than the sum of its proper divisors (23543399440).

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

22541144450 is a wasteful number, since it uses less digits than its factorization.

22541144450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725843 (or 3725827 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 22541144450 its reverse (5444114522), we get a palindrome (27985258972).

The spelling of 22541144450 in words is "twenty-two billion, five hundred forty-one million, one hundred forty-four thousand, four hundred fifty".