166049 has 8 divisors (see below), whose sum is σ = 182952. Its totient is φ = 149760.

The previous prime is 166043. The next prime is 166063. The reversal of 166049 is 940661.

It can be written as a sum of positive squares in 4 ways, for example, as 30625 + 135424 = 175^2 + 368^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-166049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569 + ... + 809.

It is an arithmetic number, because the mean of its divisors is an integer number (22869).

2¹⁶⁶⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

166049 is a deficient number, since it is larger than the sum of its proper divisors (16903).

166049 is a wasteful number, since it uses less digits than its factorization.

166049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 166049 is about 407.4911041974. The cubic root of 166049 is about 54.9640536466.

The spelling of 166049 in words is "one hundred sixty-six thousand, forty-nine".