20324123440566 has 64 divisors (see below), whose sum is σ = 44444812492800. Its totient is φ = 6144773594400.

The previous prime is 20324123440529. The next prime is 20324123440597. The reversal of 20324123440566 is 66504432142302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59759025 + ... + 60098163.

It is an arithmetic number, because the mean of its divisors is an integer number (694450195200).

Almost surely, 2^{20324123440566} is an apocalyptic number.

20324123440566 is an abundant number, since it is smaller than the sum of its proper divisors (24120689052234).

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

20324123440566 is a wasteful number, since it uses less digits than its factorization.

20324123440566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341225.

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 20324123440566 its reverse (66504432142302), we get a palindrome (86828555582868).

The spelling of 20324123440566 in words is "twenty trillion, three hundred twenty-four billion, one hundred twenty-three million, four hundred forty thousand, five hundred sixty-six".