164649984 has 44 divisors (see below), whose sum is σ = 438860424. Its totient is φ = 54882304.

The previous prime is 164649971. The next prime is 164650001. The reversal of 164649984 is 489946461.

164649984 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23727 + ... + 29870.

Almost surely, 2^164649984 is an apocalyptic number.

It is an amenable number.

164649984 is an abundant number, since it is smaller than the sum of its proper divisors (274210440).

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

164649984 is an equidigital number, since it uses as much as digits as its factorization.

164649984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53620 (or 53602 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 164649984 is about 12831.6009913027. The cubic root of 164649984 is about 548.0925483488.

The spelling of 164649984 in words is "one hundred sixty-four million, six hundred forty-nine thousand, nine hundred eighty-four".