166532803 has 2 divisors, whose sum is σ = 166532804. Its totient is φ = 166532802.

The previous prime is 166532771. The next prime is 166532809. The reversal of 166532803 is 308235661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166532803 - 2⁵ = 166532771 is a prime.

It is not a weakly prime, because it can be changed into another prime (166532809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83266401 + 83266402.

It is an arithmetic number, because the mean of its divisors is an integer number (83266402).

Almost surely, 2^166532803 is an apocalyptic number.

166532803 is a deficient number, since it is larger than the sum of its proper divisors (1).

166532803 is an equidigital number, since it uses as much as digits as its factorization.

166532803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 166532803 is about 12904.7589283954. The cubic root of 166532803 is about 550.1738326561.

The spelling of 166532803 in words is "one hundred sixty-six million, five hundred thirty-two thousand, eight hundred three".