166573 has 8 divisors (see below), whose sum is σ = 191520. Its totient is φ = 143280.

The previous prime is 166571. The next prime is 166597. The reversal of 166573 is 375661.

166573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 166573 - 2¹ = 166571 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166571) 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, 190 + ... + 607.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2¹⁶⁶⁵⁷³ is an apocalyptic number.

It is an amenable number.

166573 is a deficient number, since it is larger than the sum of its proper divisors (24947).

166573 is a wasteful number, since it uses less digits than its factorization.

166573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827.

The product of its digits is 3780, while the sum is 28.

The square root of 166573 is about 408.1335565719. The cubic root of 166573 is about 55.0218095324.

The spelling of 166573 in words is "one hundred sixty-six thousand, five hundred seventy-three".