166464618 has 16 divisors (see below), whose sum is σ = 333551136. Its totient is φ = 55384560.

The previous prime is 166464587. The next prime is 166464619. The reversal of 166464618 is 816464661.

166464618 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166464618.

It is not an unprimeable number, because it can be changed into a prime (166464619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22396 + ... + 28887.

It is an arithmetic number, because the mean of its divisors is an integer number (20846946).

Almost surely, 2^166464618 is an apocalyptic number.

166464618 is an abundant number, since it is smaller than the sum of its proper divisors (167086518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166464618 is a wasteful number, since it uses less digits than its factorization.

166464618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51829.

The product of its digits is 165888, while the sum is 42.

The square root of 166464618 is about 12902.1168030676. The cubic root of 166464618 is about 550.0987348913.

The spelling of 166464618 in words is "one hundred sixty-six million, four hundred sixty-four thousand, six hundred eighteen".