12069299328 has 128 divisors (see below), whose sum is σ = 34144312320. Its totient is φ = 3764207616.

The previous prime is 12069299321. The next prime is 12069299329. The reversal of 12069299328 is 82399296021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×12069299328² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (12069299321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124001 + ... + 1134687.

It is an arithmetic number, because the mean of its divisors is an integer number (266752440).

Almost surely, 2^12069299328 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 12069299328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17072156160).

12069299328 is an abundant number, since it is smaller than the sum of its proper divisors (22075012992).

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

12069299328 is a wasteful number, since it uses less digits than its factorization.

12069299328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10894 (or 10882 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 12069299328 in words is "twelve billion, sixty-nine million, two hundred ninety-nine thousand, three hundred twenty-eight".