12668061 has 16 divisors (see below), whose sum is σ = 19353600. Its totient is φ = 7220208.

The previous prime is 12668059. The next prime is 12668081. The reversal of 12668061 is 16086621.

12668061 is a nontrivial binomial coefficient, being equal to C(5034, 2).

It is not a de Polignac number, because 12668061 - 2¹ = 12668059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14680 + ... + 15518.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^12668061 is an apocalyptic number.

12668061 is the 5033-rd triangular number and also the 2517-th hexagonal number.

It is an amenable number.

12668061 is a deficient number, since it is larger than the sum of its proper divisors (6685539).

12668061 is an equidigital number, since it uses as much as digits as its factorization.

12668061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 12668061 is about 3559.2219655425. The cubic root of 12668061 is about 233.1149082929.

The spelling of 12668061 in words is "twelve million, six hundred sixty-eight thousand, sixty-one".