166606306003 has 2 divisors, whose sum is σ = 166606306004. Its totient is φ = 166606306002.

The previous prime is 166606305989. The next prime is 166606306021. The reversal of 166606306003 is 300603606661.

166606306003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166606306003 - 2⁹ = 166606305491 is a prime.

It is a super-2 number, since 2×166606306003² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166606346003) 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 as a sum of consecutive naturals, namely, 83303153001 + 83303153002.

It is an arithmetic number, because the mean of its divisors is an integer number (83303153002).

Almost surely, 2^166606306003 is an apocalyptic number.

166606306003 is a deficient number, since it is larger than the sum of its proper divisors (1).

166606306003 is an equidigital number, since it uses as much as digits as its factorization.

166606306003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 166606306003 in words is "one hundred sixty-six billion, six hundred six million, three hundred six thousand, three".