166117116 has 48 divisors (see below), whose sum is σ = 423642240. Its totient is φ = 50243520.

The previous prime is 166117111. The next prime is 166117139. The reversal of 166117116 is 611711661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166117111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104415 + ... + 105993.

It is an arithmetic number, because the mean of its divisors is an integer number (8825880).

Almost surely, 2^166117116 is an apocalyptic number.

It is an amenable number.

166117116 is an abundant number, since it is smaller than the sum of its proper divisors (257525124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166117116 is a wasteful number, since it uses less digits than its factorization.

166117116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394 (or 2392 counting only the distinct ones).

The product of its digits is 1512, while the sum is 30.

The square root of 166117116 is about 12888.6429076144. The cubic root of 166117116 is about 549.7156833539.

Adding to 166117116 its reverse (611711661), we get a palindrome (777828777).

The spelling of 166117116 in words is "one hundred sixty-six million, one hundred seventeen thousand, one hundred sixteen".