165000218 has 8 divisors (see below), whose sum is σ = 260526720. Its totient is φ = 78157980.

The previous prime is 165000217. The next prime is 165000271. The reversal of 165000218 is 812000561.

165000218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 165000193 and 165000202.

It is not an unprimeable number, because it can be changed into a prime (165000211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2171018 + ... + 2171093.

It is an arithmetic number, because the mean of its divisors is an integer number (32565840).

Almost surely, 2^165000218 is an apocalyptic number.

165000218 is a deficient number, since it is larger than the sum of its proper divisors (95526502).

165000218 is a wasteful number, since it uses less digits than its factorization.

165000218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342132.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 165000218 is about 12845.2410643008. The cubic root of 165000218 is about 548.4808967963.

Adding to 165000218 its reverse (812000561), we get a palindrome (977000779).

The spelling of 165000218 in words is "one hundred sixty-five million, two hundred eighteen", and thus it is an aban number.