16606201 has 2 divisors, whose sum is σ = 16606202. Its totient is φ = 16606200.

The previous prime is 16606193. The next prime is 16606211. The reversal of 16606201 is 10260661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16605625 + 576 = 4075^2 + 24^2 .

It is a cyclic number.

It is not a de Polignac number, because 16606201 - 2³ = 16606193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16606211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303100 + 8303101.

It is an arithmetic number, because the mean of its divisors is an integer number (8303101).

Almost surely, 2^16606201 is an apocalyptic number.

It is an amenable number.

16606201 is a deficient number, since it is larger than the sum of its proper divisors (1).

16606201 is an equidigital number, since it uses as much as digits as its factorization.

16606201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 16606201 is about 4075.0706742338. The cubic root of 16606201 is about 255.1272004116.

Adding to 16606201 its reverse (10260661), we get a palindrome (26866862).

It can be divided in two parts, 16606 and 201, that added together give a 5-th power (16807 = 7⁵).

The spelling of 16606201 in words is "sixteen million, six hundred six thousand, two hundred one".