164311918 has 12 divisors (see below), whose sum is σ = 250585920. Its totient is φ = 80805480.

The previous prime is 164311897. The next prime is 164311921. The reversal of 164311918 is 819113461.

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, 3598 + ... + 18481.

It is an arithmetic number, because the mean of its divisors is an integer number (20882160).

Almost surely, 2^164311918 is an apocalyptic number.

164311918 is a deficient number, since it is larger than the sum of its proper divisors (86274002).

164311918 is an equidigital number, since it uses as much as digits as its factorization.

164311918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22203 (or 22142 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 164311918 is about 12818.4210416104. The cubic root of 164311918 is about 547.7171693949.

The spelling of 164311918 in words is "one hundred sixty-four million, three hundred eleven thousand, nine hundred eighteen".