166506152 has 16 divisors (see below), whose sum is σ = 313188660. Its totient is φ = 82989184.

The previous prime is 166506127. The next prime is 166506169. The reversal of 166506152 is 251605661.

It can be written as a sum of positive squares in 2 ways, for example, as 165533956 + 972196 = 12866^2 + 986^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30293 + ... + 35364.

Almost surely, 2^166506152 is an apocalyptic number.

It is an amenable number.

166506152 is a deficient number, since it is larger than the sum of its proper divisors (146682508).

166506152 is a wasteful number, since it uses less digits than its factorization.

166506152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65980 (or 65976 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 166506152 is about 12903.7262835198. The cubic root of 166506152 is about 550.1444821522.

The spelling of 166506152 in words is "one hundred sixty-six million, five hundred six thousand, one hundred fifty-two".