12660411 has 4 divisors (see below), whose sum is σ = 16880552. Its totient is φ = 8440272.

The previous prime is 12660409. The next prime is 12660413. The reversal of 12660411 is 11406621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11406621 = 3 ⋅3802207.

It is an interprime number because it is at equal distance from previous prime (12660409) and next prime (12660413).

It is not a de Polignac number, because 12660411 - 2¹ = 12660409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12660413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110066 + ... + 2110071.

It is an arithmetic number, because the mean of its divisors is an integer number (4220138).

Almost surely, 2^12660411 is an apocalyptic number.

12660411 is a deficient number, since it is larger than the sum of its proper divisors (4220141).

12660411 is an equidigital number, since it uses as much as digits as its factorization.

12660411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220140.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12660411 is about 3558.1471301789. The cubic root of 12660411 is about 233.0679742978.

The spelling of 12660411 in words is "twelve million, six hundred sixty thousand, four hundred eleven".