166318 has 8 divisors (see below), whose sum is σ = 251712. Its totient is φ = 82416.

The previous prime is 166303. The next prime is 166319. The reversal of 166318 is 813661.

166318 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 junction number, because it is equal to n+sod(n) for n = 166292 and 166301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166319) 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, 30 + ... + 577.

It is an arithmetic number, because the mean of its divisors is an integer number (31464).

2¹⁶⁶³¹⁸ is an apocalyptic number.

166318 is a deficient number, since it is larger than the sum of its proper divisors (85394).

166318 is a wasteful number, since it uses less digits than its factorization.

166318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746.

The product of its digits is 864, while the sum is 25.

The square root of 166318 is about 407.8210391826. The cubic root of 166318 is about 54.9937182908.

Adding to 166318 its reverse (813661), we get a palindrome (979979).

It can be divided in two parts, 1663 and 18, that added together give a square (1681 = 41²).

The spelling of 166318 in words is "one hundred sixty-six thousand, three hundred eighteen".