22198959855 has 12 divisors (see below), whose sum is σ = 38478197160. Its totient is φ = 11839445232.

The previous prime is 22198959751. The next prime is 22198959857. The reversal of 22198959855 is 55895989122.

22198959855 is a `hidden beast` number, since 22 + 19 + 8 + 9 + 598 + 5 + 5 = 666.

It is not a de Polignac number, because 22198959855 - 2¹⁴ = 22198943471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22198959792 and 22198959801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22198959857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246655065 + ... + 246655154.

It is an arithmetic number, because the mean of its divisors is an integer number (3206516430).

Almost surely, 2^22198959855 is an apocalyptic number.

22198959855 is a deficient number, since it is larger than the sum of its proper divisors (16279237305).

22198959855 is a wasteful number, since it uses less digits than its factorization.

22198959855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493310230 (or 493310227 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 63.

The spelling of 22198959855 in words is "twenty-two billion, one hundred ninety-eight million, nine hundred fifty-nine thousand, eight hundred fifty-five".