166530116 has 6 divisors (see below), whose sum is σ = 291427710. Its totient is φ = 83265056.

The previous prime is 166530107. The next prime is 166530127. The reversal of 166530116 is 611035661.

It can be written as a sum of positive squares in only one way, i.e., 166513216 + 16900 = 12904^2 + 130^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20816261 + ... + 20816268.

It is an arithmetic number, because the mean of its divisors is an integer number (48571285).

Almost surely, 2^166530116 is an apocalyptic number.

It is an amenable number.

166530116 is a deficient number, since it is larger than the sum of its proper divisors (124897594).

166530116 is a wasteful number, since it uses less digits than its factorization.

166530116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41632533 (or 41632531 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 166530116 is about 12904.6548190953. The cubic root of 166530116 is about 550.1708736294.

Adding to 166530116 its reverse (611035661), we get a palindrome (777565777).

The spelling of 166530116 in words is "one hundred sixty-six million, five hundred thirty thousand, one hundred sixteen".