23305336816 has 80 divisors (see below), whose sum is σ = 48692017440. Its totient is φ = 10782858240.

The previous prime is 23305336807. The next prime is 23305336823. The reversal of 23305336816 is 61863350332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140126 + ... + 1160386.

It is an arithmetic number, because the mean of its divisors is an integer number (608650218).

Almost surely, 2^23305336816 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 23305336816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24346008720).

23305336816 is an abundant number, since it is smaller than the sum of its proper divisors (25386680624).

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

23305336816 is a wasteful number, since it uses less digits than its factorization.

23305336816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20402 (or 20396 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 23305336816 in words is "twenty-three billion, three hundred five million, three hundred thirty-six thousand, eight hundred sixteen".