166916303 has 2 divisors, whose sum is σ = 166916304. Its totient is φ = 166916302.

The previous prime is 166916261. The next prime is 166916329. The reversal of 166916303 is 303619661.

It is a strong prime.

It is an emirp because it is prime and its reverse (303619661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166916303 - 2¹⁰ = 166915279 is a prime.

It is a super-2 number, since 2×166916303² = 55722104414375618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166996303) 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, 83458151 + 83458152.

It is an arithmetic number, because the mean of its divisors is an integer number (83458152).

Almost surely, 2^166916303 is an apocalyptic number.

166916303 is a deficient number, since it is larger than the sum of its proper divisors (1).

166916303 is an equidigital number, since it uses as much as digits as its factorization.

166916303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 166916303 is about 12919.6092433169. The cubic root of 166916303 is about 550.5958314199.

The spelling of 166916303 in words is "one hundred sixty-six million, nine hundred sixteen thousand, three hundred three".