166078 has 8 divisors (see below), whose sum is σ = 271800. Its totient is φ = 75480.

The previous prime is 166063. The next prime is 166081. The reversal of 166078 is 870661.

166078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

166078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3753 + ... + 3796.

It is an arithmetic number, because the mean of its divisors is an integer number (33975).

2¹⁶⁶⁰⁷⁸ is an apocalyptic number.

166078 is a deficient number, since it is larger than the sum of its proper divisors (105722).

166078 is a wasteful number, since it uses less digits than its factorization.

166078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7562.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 166078 is about 407.5266862428. The cubic root of 166078 is about 54.9672532339.

The spelling of 166078 in words is "one hundred sixty-six thousand, seventy-eight".