166355 has 16 divisors (see below), whose sum is σ = 235200. Its totient is φ = 112896.

The previous prime is 166351. The next prime is 166357. The reversal of 166355 is 553661.

166355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166355 - 2² = 166351 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (166351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1667 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (14700).

2¹⁶⁶³⁵⁵ is an apocalyptic number.

166355 is a deficient number, since it is larger than the sum of its proper divisors (68845).

166355 is an frugal number, since it uses more digits than its factorization.

166355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 109 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 166355 is about 407.8663996948. The cubic root of 166355 is about 54.9977960549.

The spelling of 166355 in words is "one hundred sixty-six thousand, three hundred fifty-five".