12165708043 has 4 divisors (see below), whose sum is σ = 12179580880. Its totient is φ = 12151835208.

The previous prime is 12165708031. The next prime is 12165708083. The reversal of 12165708043 is 34080756121.

12165708043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34080756121 = 2699 ⋅12627179.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12165708043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12165707993 and 12165708011.

It is not an unprimeable number, because it can be changed into a prime (12165708083) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6935103 + ... + 6936856.

It is an arithmetic number, because the mean of its divisors is an integer number (3044895220).

Almost surely, 2^12165708043 is an apocalyptic number.

12165708043 is a deficient number, since it is larger than the sum of its proper divisors (13872837).

12165708043 is an equidigital number, since it uses as much as digits as its factorization.

12165708043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13872836.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 12165708043 in words is "twelve billion, one hundred sixty-five million, seven hundred eight thousand, forty-three".