22244435536 has 80 divisors (see below), whose sum is σ = 46305036288. Its totient is φ = 10315008000.

The previous prime is 22244435531. The next prime is 22244435627. The reversal of 22244435536 is 63553444222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244435531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6124441 + ... + 6128071.

Almost surely, 2^22244435536 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 22244435536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23152518144).

22244435536 is an abundant number, since it is smaller than the sum of its proper divisors (24060600752).

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

22244435536 is a wasteful number, since it uses less digits than its factorization.

22244435536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980 (or 3974 counting only the distinct ones).

The product of its digits is 691200, while the sum is 40.

Adding to 22244435536 its reverse (63553444222), we get a palindrome (85797879758).

The spelling of 22244435536 in words is "twenty-two billion, two hundred forty-four million, four hundred thirty-five thousand, five hundred thirty-six".