12066603 has 4 divisors (see below), whose sum is σ = 16088808. Its totient is φ = 8044400.

The previous prime is 12066557. The next prime is 12066611. The reversal of 12066603 is 30666021.

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

It is a cyclic number.

It is not a de Polignac number, because 12066603 - 2⁹ = 12066091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12066673) 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, 2011098 + ... + 2011103.

It is an arithmetic number, because the mean of its divisors is an integer number (4022202).

Almost surely, 2^12066603 is an apocalyptic number.

12066603 is a deficient number, since it is larger than the sum of its proper divisors (4022205).

12066603 is an equidigital number, since it uses as much as digits as its factorization.

12066603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022204.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 12066603 is about 3473.7016279468. The cubic root of 12066603 is about 229.3656306389.

The spelling of 12066603 in words is "twelve million, sixty-six thousand, six hundred three".