166433 has 4 divisors (see below), whose sum is σ = 167700. Its totient is φ = 165168.

The previous prime is 166429. The next prime is 166457. The reversal of 166433 is 334661.

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 12769 + 153664 = 113^2 + 392^2 .

It is a cyclic number.

It is not a de Polignac number, because 166433 - 2² = 166429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166399 and 166408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166403) 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, 410 + ... + 707.

It is an arithmetic number, because the mean of its divisors is an integer number (41925).

2¹⁶⁶⁴³³ is an apocalyptic number.

It is an amenable number.

166433 is a deficient number, since it is larger than the sum of its proper divisors (1267).

166433 is a wasteful number, since it uses less digits than its factorization.

166433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its digits is 1296, while the sum is 23.

The square root of 166433 is about 407.9620080351. The cubic root of 166433 is about 55.0063904420.

The spelling of 166433 in words is "one hundred sixty-six thousand, four hundred thirty-three".