23204445660 has 288 divisors, whose sum is σ = 79162417152. Its totient is φ = 5452392960.

The previous prime is 23204445631. The next prime is 23204445673. The reversal of 23204445660 is 6654440232.

23204445660 is a `hidden beast` number, since 2 + 3 + 204 + 445 + 6 + 6 + 0 = 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 95 ways as a sum of consecutive naturals, for example, 28058167 + ... + 28058993.

It is an arithmetic number, because the mean of its divisors is an integer number (274869504).

Almost surely, 2^23204445660 is an apocalyptic number.

23204445660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23204445660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39581208576).

23204445660 is an abundant number, since it is smaller than the sum of its proper divisors (55957971492).

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

23204445660 is a wasteful number, since it uses less digits than its factorization.

23204445660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 23204445660 its reverse (6654440232), we get a palindrome (29858885892).

It can be divided in two parts, 23204 and 445660, that added together give a palindrome (468864).

The spelling of 23204445660 in words is "twenty-three billion, two hundred four million, four hundred forty-five thousand, six hundred sixty".