22165589809 has 8 divisors (see below), whose sum is σ = 24189569280. Its totient is φ = 20143098000.

The previous prime is 22165589801. The next prime is 22165589813. The reversal of 22165589809 is 90898556122.

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 22165589809 - 2³ = 22165589801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22165589809.

It is not an unprimeable number, because it can be changed into a prime (22165589801) 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, 340642 + ... + 400459.

It is an arithmetic number, because the mean of its divisors is an integer number (3023696160).

Almost surely, 2^22165589809 is an apocalyptic number.

It is an amenable number.

22165589809 is a deficient number, since it is larger than the sum of its proper divisors (2023979471).

22165589809 is a wasteful number, since it uses less digits than its factorization.

22165589809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743831.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 22165589809 in words is "twenty-two billion, one hundred sixty-five million, five hundred eighty-nine thousand, eight hundred nine".