12660345067 has 16 divisors (see below), whose sum is σ = 13192740000. Its totient is φ = 12134626560.

The previous prime is 12660345053. The next prime is 12660345119. The reversal of 12660345067 is 76054306621.

It is a cyclic number.

It is not a de Polignac number, because 12660345067 - 2¹⁵ = 12660312299 is a prime.

It is a super-2 number, since 2×12660345067² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12660345367) 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 15 ways as a sum of consecutive naturals, for example, 2848567 + ... + 2853007.

It is an arithmetic number, because the mean of its divisors is an integer number (824546250).

Almost surely, 2^12660345067 is an apocalyptic number.

12660345067 is a deficient number, since it is larger than the sum of its proper divisors (532394933).

12660345067 is a wasteful number, since it uses less digits than its factorization.

12660345067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 12660345067 in words is "twelve billion, six hundred sixty million, three hundred forty-five thousand, sixty-seven".