166744 has 16 divisors (see below), whose sum is σ = 329400. Its totient is φ = 78912.

The previous prime is 166741. The next prime is 166781. The reversal of 166744 is 447661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166741) 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, 397 + ... + 700.

2¹⁶⁶⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

166744 is a deficient number, since it is larger than the sum of its proper divisors (162656).

166744 is a wasteful number, since it uses less digits than its factorization.

166744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1118 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 166744 is about 408.3429930830. The cubic root of 166744 is about 55.0406311335.

It can be divided in two parts, 1667 and 44, that added together give a triangular number (1711 = T₅₈).

The spelling of 166744 in words is "one hundred sixty-six thousand, seven hundred forty-four".