22128744655 has 8 divisors (see below), whose sum is σ = 26557423200. Its totient is φ = 17701042656.

The previous prime is 22128744653. The next prime is 22128744679. The reversal of 22128744655 is 55644782122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22128744655 - 2¹ = 22128744653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22128744653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193320 + ... + 285709.

It is an arithmetic number, because the mean of its divisors is an integer number (3319677900).

Almost surely, 2^22128744655 is an apocalyptic number.

22128744655 is a deficient number, since it is larger than the sum of its proper divisors (4428678545).

22128744655 is an equidigital number, since it uses as much as digits as its factorization.

22128744655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488273.

The product of its digits is 1075200, while the sum is 46.

The spelling of 22128744655 in words is "twenty-two billion, one hundred twenty-eight million, seven hundred forty-four thousand, six hundred fifty-five".