22389666816 has 176 divisors, whose sum is σ = 65933706240. Its totient is φ = 6698065920.

The previous prime is 22389666811. The next prime is 22389666829. The reversal of 22389666816 is 61866698322.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22389666811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2665375 + ... + 2673761.

Almost surely, 2^22389666816 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 22389666816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32966853120).

22389666816 is an abundant number, since it is smaller than the sum of its proper divisors (43544039424).

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

22389666816 is a wasteful number, since it uses less digits than its factorization.

22389666816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500 (or 8482 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 57.

The spelling of 22389666816 in words is "twenty-two billion, three hundred eighty-nine million, six hundred sixty-six thousand, eight hundred sixteen".