12065065705 has 32 divisors (see below), whose sum is σ = 18058936320. Its totient is φ = 7517603520.

The previous prime is 12065065687. The next prime is 12065065711. The reversal of 12065065705 is 50756056021.

12065065705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12065065705 - 2⁵ = 12065065673 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1013176 + ... + 1025014.

It is an arithmetic number, because the mean of its divisors is an integer number (564341760).

Almost surely, 2^12065065705 is an apocalyptic number.

It is an amenable number.

12065065705 is a deficient number, since it is larger than the sum of its proper divisors (5993870615).

12065065705 is a wasteful number, since it uses less digits than its factorization.

12065065705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14509.

The product of its (nonzero) digits is 63000, while the sum is 37.

It can be divided in two parts, 120650 and 65705, that added together give a triangular number (186355 = T₆₁₀).

The spelling of 12065065705 in words is "twelve billion, sixty-five million, sixty-five thousand, seven hundred five".