166449 has 8 divisors (see below), whose sum is σ = 224352. Its totient is φ = 109760.

The previous prime is 166429. The next prime is 166457. The reversal of 166449 is 944661.

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 166449 - 2⁵ = 166417 is a prime.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (166409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94 + ... + 584.

It is an arithmetic number, because the mean of its divisors is an integer number (28044).

2¹⁶⁶⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

166449 is a deficient number, since it is larger than the sum of its proper divisors (57903).

166449 is a wasteful number, since it uses less digits than its factorization.

166449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607.

The product of its digits is 5184, while the sum is 30.

The square root of 166449 is about 407.9816172329. The cubic root of 166449 is about 55.0081530613.

It can be divided in two parts, 16644 and 9, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 166449 in words is "one hundred sixty-six thousand, four hundred forty-nine".