12668065067 has 4 divisors (see below), whose sum is σ = 14477788656. Its totient is φ = 10858341480.

The previous prime is 12668065061. The next prime is 12668065127. The reversal of 12668065067 is 76056086621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12668065067 - 2¹⁰ = 12668064043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12668065061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904861784 + ... + 904861797.

It is an arithmetic number, because the mean of its divisors is an integer number (3619447164).

Almost surely, 2^12668065067 is an apocalyptic number.

12668065067 is a deficient number, since it is larger than the sum of its proper divisors (1809723589).

12668065067 is an equidigital number, since it uses as much as digits as its factorization.

12668065067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809723588.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 12668065067 in words is "twelve billion, six hundred sixty-eight million, sixty-five thousand, sixty-seven".