22440066198 has 32 divisors (see below), whose sum is σ = 51840155520. Its totient is φ = 6400018560.

The previous prime is 22440066161. The next prime is 22440066227. The reversal of 22440066198 is 89166004422.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9998908 + ... + 10001151.

It is an arithmetic number, because the mean of its divisors is an integer number (1620004860).

Almost surely, 2^22440066198 is an apocalyptic number.

22440066198 is an abundant number, since it is smaller than the sum of its proper divisors (29400089322).

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

22440066198 is a wasteful number, since it uses less digits than its factorization.

22440066198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000092.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 22440066198 in words is "twenty-two billion, four hundred forty million, sixty-six thousand, one hundred ninety-eight".