23384816664528 has 160 divisors (see below), whose sum is σ = 68183234029440. Its totient is φ = 6841143429120.

The previous prime is 23384816664413. The next prime is 23384816664529. The reversal of 23384816664528 is 82546661848332.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23384816664529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136083750 + ... + 136255482.

It is an arithmetic number, because the mean of its divisors is an integer number (426145212684).

Almost surely, 2^{23384816664528} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23384816664528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34091617014720).

23384816664528 is an abundant number, since it is smaller than the sum of its proper divisors (44798417364912).

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

23384816664528 is a wasteful number, since it uses less digits than its factorization.

23384816664528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180677 (or 180671 counting only the distinct ones).

The product of its digits is 318504960, while the sum is 66.

It can be divided in two parts, 2338481 and 6664528, that added together give a palindrome (9003009).

The spelling of 23384816664528 in words is "twenty-three trillion, three hundred eighty-four billion, eight hundred sixteen million, six hundred sixty-four thousand, five hundred twenty-eight".