23345621712 has 200 divisors, whose sum is σ = 77352941952. Its totient is φ = 6658848000.

The previous prime is 23345621657. The next prime is 23345621749. The reversal of 23345621712 is 21712654332.

23345621712 is a `hidden beast` number, since 2 + 33 + 456 + 2 + 171 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6357637 + ... + 6361307.

Almost surely, 2^23345621712 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 23345621712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38676470976).

23345621712 is an abundant number, since it is smaller than the sum of its proper divisors (54007320240).

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

23345621712 is a wasteful number, since it uses less digits than its factorization.

23345621712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399 (or 4384 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The spelling of 23345621712 in words is "twenty-three billion, three hundred forty-five million, six hundred twenty-one thousand, seven hundred twelve".