164043568 has 120 divisors (see below), whose sum is σ = 377594880. Its totient is φ = 68739840.

The previous prime is 164043563. The next prime is 164043577. The reversal of 164043568 is 865340461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (164043563) 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 23 ways as a sum of consecutive naturals, for example, 1592605 + ... + 1592707.

It is an arithmetic number, because the mean of its divisors is an integer number (3146624).

Almost surely, 2^164043568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164043568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188797440).

164043568 is an abundant number, since it is smaller than the sum of its proper divisors (213551312).

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

164043568 is a wasteful number, since it uses less digits than its factorization.

164043568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 164043568 is about 12807.9494065209. The cubic root of 164043568 is about 547.4188343918.

The spelling of 164043568 in words is "one hundred sixty-four million, forty-three thousand, five hundred sixty-eight".