22648804656 has 80 divisors (see below), whose sum is σ = 60725280000. Its totient is φ = 7265389824.

The previous prime is 22648804649. The next prime is 22648804657. The reversal of 22648804656 is 65640884622.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22648804599 and 22648804608.

It is not an unprimeable number, because it can be changed into a prime (22648804657) 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 15 ways as a sum of consecutive naturals, for example, 400845 + ... + 453843.

It is an arithmetic number, because the mean of its divisors is an integer number (759066000).

Almost surely, 2^22648804656 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 22648804656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30362640000).

22648804656 is an abundant number, since it is smaller than the sum of its proper divisors (38076475344).

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

22648804656 is a wasteful number, since it uses less digits than its factorization.

22648804656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53346 (or 53340 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The spelling of 22648804656 in words is "twenty-two billion, six hundred forty-eight million, eight hundred four thousand, six hundred fifty-six".