166635283 has 2 divisors, whose sum is σ = 166635284. Its totient is φ = 166635282.

The previous prime is 166635281. The next prime is 166635289. The reversal of 166635283 is 382536661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166635283 - 2¹ = 166635281 is a prime.

Together with 166635281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (166635281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83317641 + 83317642.

It is an arithmetic number, because the mean of its divisors is an integer number (83317642).

Almost surely, 2^166635283 is an apocalyptic number.

166635283 is a deficient number, since it is larger than the sum of its proper divisors (1).

166635283 is an equidigital number, since it uses as much as digits as its factorization.

166635283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 166635283 is about 12908.7289459497. The cubic root of 166635283 is about 550.2866637860.

The spelling of 166635283 in words is "one hundred sixty-six million, six hundred thirty-five thousand, two hundred eighty-three".