166870652 has 24 divisors (see below), whose sum is σ = 317738736. Its totient is φ = 76220928.

The previous prime is 166870643. The next prime is 166870663. The reversal of 166870652 is 256078661.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11498 + ... + 21585.

It is an arithmetic number, because the mean of its divisors is an integer number (13239114).

Almost surely, 2^166870652 is an apocalyptic number.

It is an amenable number.

166870652 is a deficient number, since it is larger than the sum of its proper divisors (150868084).

166870652 is a wasteful number, since it uses less digits than its factorization.

166870652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33197 (or 33195 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 166870652 is about 12917.8423895014. The cubic root of 166870652 is about 550.5456315260.

The spelling of 166870652 in words is "one hundred sixty-six million, eight hundred seventy thousand, six hundred fifty-two".