22055544544 has 96 divisors (see below), whose sum is σ = 48867622272. Its totient is φ = 9713088000.

The previous prime is 22055544529. The next prime is 22055544547. The reversal of 22055544544 is 44544555022.

It is a junction number, because it is equal to n+sod(n) for n = 22055544497 and 22055544506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22055544547) 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, 1430959 + ... + 1446289.

It is an arithmetic number, because the mean of its divisors is an integer number (509037732).

Almost surely, 2^22055544544 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 22055544544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24433811136).

22055544544 is an abundant number, since it is smaller than the sum of its proper divisors (26812077728).

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

22055544544 is a wasteful number, since it uses less digits than its factorization.

22055544544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15480 (or 15472 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 40.

The spelling of 22055544544 in words is "twenty-two billion, fifty-five million, five hundred forty-four thousand, five hundred forty-four".