164989668 has 24 divisors (see below), whose sum is σ = 385187040. Its totient is φ = 54966400.

The previous prime is 164989663. The next prime is 164989679. The reversal of 164989668 is 866989461.

164989668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164989663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34843 + ... + 39293.

It is an arithmetic number, because the mean of its divisors is an integer number (16049460).

Almost surely, 2^164989668 is an apocalyptic number.

It is an amenable number.

164989668 is an abundant number, since it is smaller than the sum of its proper divisors (220197372).

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

164989668 is a wasteful number, since it uses less digits than its factorization.

164989668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7547 (or 7545 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The square root of 164989668 is about 12844.8303998145. The cubic root of 164989668 is about 548.4692067172.

The spelling of 164989668 in words is "one hundred sixty-four million, nine hundred eighty-nine thousand, six hundred sixty-eight".