12666460603 has 4 divisors (see below), whose sum is σ = 12666792528. Its totient is φ = 12666128680.

The previous prime is 12666460579. The next prime is 12666460621. The reversal of 12666460603 is 30606466621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30606466621 = 44203 ⋅692407.

It is a cyclic number.

It is not a de Polignac number, because 12666460603 - 2²⁵ = 12632906171 is a prime.

It is a super-2 number, since 2×12666460603² (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 (12666460643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99976 + ... + 187957.

It is an arithmetic number, because the mean of its divisors is an integer number (3166698132).

Almost surely, 2^12666460603 is an apocalyptic number.

12666460603 is a deficient number, since it is larger than the sum of its proper divisors (331925).

12666460603 is an equidigital number, since it uses as much as digits as its factorization.

12666460603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331924.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 12666460603 in words is "twelve billion, six hundred sixty-six million, four hundred sixty thousand, six hundred three".