166532203 has 2 divisors, whose sum is σ = 166532204. Its totient is φ = 166532202.

The previous prime is 166532189. The next prime is 166532209. The reversal of 166532203 is 302235661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166532203 is a prime.

It is not a weakly prime, because it can be changed into another prime (166532209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83266101 + 83266102.

It is an arithmetic number, because the mean of its divisors is an integer number (83266102).

Almost surely, 2^166532203 is an apocalyptic number.

166532203 is a deficient number, since it is larger than the sum of its proper divisors (1).

166532203 is an equidigital number, since it uses as much as digits as its factorization.

166532203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 166532203 is about 12904.7356811366. The cubic root of 166532203 is about 550.1731719160.

Adding to 166532203 its reverse (302235661), we get a palindrome (468767864).

The spelling of 166532203 in words is "one hundred sixty-six million, five hundred thirty-two thousand, two hundred three".