166933087 has 2 divisors, whose sum is σ = 166933088. Its totient is φ = 166933086.

The previous prime is 166933051. The next prime is 166933097. The reversal of 166933087 is 780339661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166933087 - 2¹⁹ = 166408799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166933037) 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, 83466543 + 83466544.

It is an arithmetic number, because the mean of its divisors is an integer number (83466544).

Almost surely, 2^166933087 is an apocalyptic number.

166933087 is a deficient number, since it is larger than the sum of its proper divisors (1).

166933087 is an equidigital number, since it uses as much as digits as its factorization.

166933087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 166933087 is about 12920.2587822381. The cubic root of 166933087 is about 550.6142855604.

The spelling of 166933087 in words is "one hundred sixty-six million, nine hundred thirty-three thousand, eighty-seven".