163540166 has 32 divisors (see below), whose sum is σ = 265559040. Its totient is φ = 75341376.

The previous prime is 163540147. The next prime is 163540171. The reversal of 163540166 is 661045361.

163540166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 144290 + ... + 145418.

It is an arithmetic number, because the mean of its divisors is an integer number (8298720).

Almost surely, 2^163540166 is an apocalyptic number.

163540166 is a deficient number, since it is larger than the sum of its proper divisors (102018874).

163540166 is a wasteful number, since it uses less digits than its factorization.

163540166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 163540166 is about 12788.2823709832. The cubic root of 163540166 is about 546.8583042348.

The spelling of 163540166 in words is "one hundred sixty-three million, five hundred forty thousand, one hundred sixty-six".