22205716791 has 4 divisors (see below), whose sum is σ = 29607622392. Its totient is φ = 14803811192.

The previous prime is 22205716789. The next prime is 22205716801. The reversal of 22205716791 is 19761750222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22205716791 - 2¹ = 22205716789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22205716391) 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 3 ways as a sum of consecutive naturals, for example, 3700952796 + ... + 3700952801.

It is an arithmetic number, because the mean of its divisors is an integer number (7401905598).

Almost surely, 2^22205716791 is an apocalyptic number.

22205716791 is a deficient number, since it is larger than the sum of its proper divisors (7401905601).

22205716791 is an equidigital number, since it uses as much as digits as its factorization.

22205716791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401905600.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 22205716791 in words is "twenty-two billion, two hundred five million, seven hundred sixteen thousand, seven hundred ninety-one".