164337644 has 12 divisors (see below), whose sum is σ = 287943600. Its totient is φ = 82068048.

The previous prime is 164337643. The next prime is 164337647. The reversal of 164337644 is 446733461.

It is a happy number.

164337644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×164337644² = 54013722470941472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164337598 and 164337607.

It is not an unprimeable number, because it can be changed into a prime (164337643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21464 + ... + 28095.

It is an arithmetic number, because the mean of its divisors is an integer number (23995300).

Almost surely, 2^164337644 is an apocalyptic number.

It is an amenable number.

164337644 is a deficient number, since it is larger than the sum of its proper divisors (123605956).

164337644 is a wasteful number, since it uses less digits than its factorization.

164337644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50392 (or 50390 counting only the distinct ones).

The product of its digits is 145152, while the sum is 38.

The square root of 164337644 is about 12819.4244800615. The cubic root of 164337644 is about 547.7457529100.

The spelling of 164337644 in words is "one hundred sixty-four million, three hundred thirty-seven thousand, six hundred forty-four".