164432544 has 24 divisors (see below), whose sum is σ = 431635680. Its totient is φ = 54810816.

The previous prime is 164432533. The next prime is 164432563. The reversal of 164432544 is 445234461.

It is a happy number.

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

It is a super-3 number, since 3×164432544³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856324 + ... + 856515.

It is an arithmetic number, because the mean of its divisors is an integer number (17984820).

Almost surely, 2^164432544 is an apocalyptic number.

It is an amenable number.

164432544 is an abundant number, since it is smaller than the sum of its proper divisors (267203136).

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

164432544 is a wasteful number, since it uses less digits than its factorization.

164432544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712852 (or 1712844 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 164432544 is about 12823.1253600673. The cubic root of 164432544 is about 547.8511681354.

The spelling of 164432544 in words is "one hundred sixty-four million, four hundred thirty-two thousand, five hundred forty-four".