166303243 has 2 divisors, whose sum is σ = 166303244. Its totient is φ = 166303242.

The previous prime is 166303223. The next prime is 166303273. The reversal of 166303243 is 342303661.

166303243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166303243 - 2⁵ = 166303211 is a prime.

It is not a weakly prime, because it can be changed into another prime (166303213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83151621 + 83151622.

It is an arithmetic number, because the mean of its divisors is an integer number (83151622).

Almost surely, 2^166303243 is an apocalyptic number.

166303243 is a deficient number, since it is larger than the sum of its proper divisors (1).

166303243 is an equidigital number, since it uses as much as digits as its factorization.

166303243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 166303243 is about 12895.8614679284. The cubic root of 166303243 is about 549.9209175552.

The spelling of 166303243 in words is "one hundred sixty-six million, three hundred three thousand, two hundred forty-three".