22044245652 has 144 divisors (see below), whose sum is σ = 65598361920. Its totient is φ = 6153638400.

The previous prime is 22044245633. The next prime is 22044245653. The reversal of 22044245652 is 25654244022.

22044245652 is a `hidden beast` number, since 220 + 4 + 424 + 5 + 6 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044245653) 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 47 ways as a sum of consecutive naturals, for example, 2677999 + ... + 2686217.

It is an arithmetic number, because the mean of its divisors is an integer number (455544180).

Almost surely, 2^22044245652 is an apocalyptic number.

22044245652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22044245652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32799180960).

22044245652 is an abundant number, since it is smaller than the sum of its proper divisors (43554116268).

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

22044245652 is a wasteful number, since it uses less digits than its factorization.

22044245652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8774 (or 8769 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 22044245652 its reverse (25654244022), we get a palindrome (47698489674).

The spelling of 22044245652 in words is "twenty-two billion, forty-four million, two hundred forty-five thousand, six hundred fifty-two".