12065433328 has 80 divisors (see below), whose sum is σ = 25423372800. Its totient is φ = 5514024960.

The previous prime is 12065433299. The next prime is 12065433343. The reversal of 12065433328 is 82333456021.

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, 10686268 + ... + 10687396.

It is an arithmetic number, because the mean of its divisors is an integer number (317792160).

Almost surely, 2^12065433328 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 12065433328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12711686400).

12065433328 is an abundant number, since it is smaller than the sum of its proper divisors (13357939472).

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

12065433328 is a wasteful number, since it uses less digits than its factorization.

12065433328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 12065433328 its reverse (82333456021), we get a palindrome (94398889349).

The spelling of 12065433328 in words is "twelve billion, sixty-five million, four hundred thirty-three thousand, three hundred twenty-eight".