166316 has 6 divisors (see below), whose sum is σ = 291060. Its totient is φ = 83156.

The previous prime is 166303. The next prime is 166319. The reversal of 166316 is 613661.

It is a super-2 number, since 2×166316² = 55322023712, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 166291 and 166300.

It is not an unprimeable number, because it can be changed into a prime (166319) by changing a digit.

166316 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 as a sum of consecutive naturals, namely, 20786 + ... + 20793.

It is an arithmetic number, because the mean of its divisors is an integer number (48510).

2¹⁶⁶³¹⁶ is an apocalyptic number.

It is an amenable number.

166316 is a deficient number, since it is larger than the sum of its proper divisors (124744).

166316 is a wasteful number, since it uses less digits than its factorization.

166316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41583 (or 41581 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 166316 is about 407.8185871193. The cubic root of 166316 is about 54.9934978539.

Adding to 166316 its reverse (613661), we get a palindrome (779977).

The spelling of 166316 in words is "one hundred sixty-six thousand, three hundred sixteen".