166043359 has 2 divisors, whose sum is σ = 166043360. Its totient is φ = 166043358.

The previous prime is 166043327. The next prime is 166043363. The reversal of 166043359 is 953340661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166043359 - 2⁵ = 166043327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166043389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83021679 + 83021680.

It is an arithmetic number, because the mean of its divisors is an integer number (83021680).

Almost surely, 2^166043359 is an apocalyptic number.

166043359 is a deficient number, since it is larger than the sum of its proper divisors (1).

166043359 is an equidigital number, since it uses as much as digits as its factorization.

166043359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 166043359 is about 12885.7812723948. The cubic root of 166043359 is about 549.6343122849.

The spelling of 166043359 in words is "one hundred sixty-six million, forty-three thousand, three hundred fifty-nine".