166472 has 8 divisors (see below), whose sum is σ = 312150. Its totient is φ = 83232.

The previous prime is 166471. The next prime is 166487. The reversal of 166472 is 274661.

166472 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in only one way, i.e., 155236 + 11236 = 394^2 + 106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (166471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10397 + ... + 10412.

2¹⁶⁶⁴⁷² is an apocalyptic number.

It is an amenable number.

166472 is a deficient number, since it is larger than the sum of its proper divisors (145678).

166472 is a wasteful number, since it uses less digits than its factorization.

166472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20815 (or 20811 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 166472 is about 408.0098038038. The cubic root of 166472 is about 55.0106866287.

The spelling of 166472 in words is "one hundred sixty-six thousand, four hundred seventy-two".