166073 has 4 divisors (see below), whose sum is σ = 175860. Its totient is φ = 156288.

The previous prime is 166063. The next prime is 166081. The reversal of 166073 is 370661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94249 + 71824 = 307^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 166073 - 2⁸ = 165817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 166073.

It is not an unprimeable number, because it can be changed into a prime (166013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4868 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (43965).

2¹⁶⁶⁰⁷³ is an apocalyptic number.

It is an amenable number.

166073 is a deficient number, since it is larger than the sum of its proper divisors (9787).

166073 is an equidigital number, since it uses as much as digits as its factorization.

166073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9786.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 166073 is about 407.5205516290. The cubic root of 166073 is about 54.9667016075.

The spelling of 166073 in words is "one hundred sixty-six thousand, seventy-three".