12065752985 has 32 divisors (see below), whose sum is σ = 17045320320. Its totient is φ = 8083353600.

The previous prime is 12065752981. The next prime is 12065752991. The reversal of 12065752985 is 58925756021.

It is not a de Polignac number, because 12065752985 - 2² = 12065752981 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12065752981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333881 + ... + 368249.

It is an arithmetic number, because the mean of its divisors is an integer number (532666260).

Almost surely, 2^12065752985 is an apocalyptic number.

It is an amenable number.

12065752985 is a deficient number, since it is larger than the sum of its proper divisors (4979567335).

12065752985 is a wasteful number, since it uses less digits than its factorization.

12065752985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34889.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 12065752985 in words is "twelve billion, sixty-five million, seven hundred fifty-two thousand, nine hundred eighty-five".