166512214 has 12 divisors (see below), whose sum is σ = 274539132. Its totient is φ = 75687260.

The previous prime is 166512209. The next prime is 166512221. The reversal of 166512214 is 412215661.

166512214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166512214² = 55452634822363592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 343792 + ... + 344275.

It is an arithmetic number, because the mean of its divisors is an integer number (22878261).

Almost surely, 2^166512214 is an apocalyptic number.

166512214 is a deficient number, since it is larger than the sum of its proper divisors (108026918).

166512214 is a wasteful number, since it uses less digits than its factorization.

166512214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688091 (or 688080 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 166512214 is about 12903.9611747711. The cubic root of 166512214 is about 550.1511584528.

Adding to 166512214 its reverse (412215661), we get a palindrome (578727875).

The spelling of 166512214 in words is "one hundred sixty-six million, five hundred twelve thousand, two hundred fourteen".