166299 has 8 divisors (see below), whose sum is σ = 253440. Its totient is φ = 95016.

The previous prime is 166297. The next prime is 166301. The reversal of 166299 is 992661.

It is a happy number.

166299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166297) and next prime (166301).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166299 - 2¹ = 166297 is a prime.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (166297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3939 + ... + 3980.

It is an arithmetic number, because the mean of its divisors is an integer number (31680).

2¹⁶⁶²⁹⁹ is an apocalyptic number.

166299 is a deficient number, since it is larger than the sum of its proper divisors (87141).

166299 is an equidigital number, since it uses as much as digits as its factorization.

166299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929.

The product of its digits is 5832, while the sum is 33.

The square root of 166299 is about 407.7977439859. The cubic root of 166299 is about 54.9916240688.

It can be divided in two parts, 166 and 299, that added together give a triangular number (465 = T₃₀).

The spelling of 166299 in words is "one hundred sixty-six thousand, two hundred ninety-nine".