22164243441 has 4 divisors (see below), whose sum is σ = 29552324592. Its totient is φ = 14776162292.

The previous prime is 22164243421. The next prime is 22164243443. The reversal of 22164243441 is 14434246122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22164243441 - 2⁶ = 22164243377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22164243443) 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, 3694040571 + ... + 3694040576.

It is an arithmetic number, because the mean of its divisors is an integer number (7388081148).

Almost surely, 2^22164243441 is an apocalyptic number.

It is an amenable number.

22164243441 is a deficient number, since it is larger than the sum of its proper divisors (7388081151).

22164243441 is an equidigital number, since it uses as much as digits as its factorization.

22164243441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7388081150.

The product of its digits is 36864, while the sum is 33.

Adding to 22164243441 its reverse (14434246122), we get a palindrome (36598489563).

The spelling of 22164243441 in words is "twenty-two billion, one hundred sixty-four million, two hundred forty-three thousand, four hundred forty-one".