22552164389 has 4 divisors (see below), whose sum is σ = 23329825260. Its totient is φ = 21774503520.

The previous prime is 22552164379. The next prime is 22552164391. The reversal of 22552164389 is 98346125522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19274601889 + 3277562500 = 138833^2 + 57250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22552164389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22552164379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388830392 + ... + 388830449.

It is an arithmetic number, because the mean of its divisors is an integer number (5832456315).

Almost surely, 2^22552164389 is an apocalyptic number.

22552164389 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22552164389 is a deficient number, since it is larger than the sum of its proper divisors (777660871).

22552164389 is an equidigital number, since it uses as much as digits as its factorization.

22552164389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777660870.

The product of its digits is 1036800, while the sum is 47.

The spelling of 22552164389 in words is "twenty-two billion, five hundred fifty-two million, one hundred sixty-four thousand, three hundred eighty-nine".