164178912 has 24 divisors (see below), whose sum is σ = 430969896. Its totient is φ = 54726272.

The previous prime is 164178907. The next prime is 164178913. The reversal of 164178912 is 219871461.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164178913) 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 3 ways as a sum of consecutive naturals, for example, 855003 + ... + 855194.

It is an arithmetic number, because the mean of its divisors is an integer number (17957079).

Almost surely, 2^164178912 is an apocalyptic number.

164178912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164178912 is an abundant number, since it is smaller than the sum of its proper divisors (266790984).

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

164178912 is a wasteful number, since it uses less digits than its factorization.

164178912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710210 (or 1710202 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 164178912 is about 12813.2319108022. The cubic root of 164178912 is about 547.5693421482.

The spelling of 164178912 in words is "one hundred sixty-four million, one hundred seventy-eight thousand, nine hundred twelve".