164643144 has 64 divisors (see below), whose sum is σ = 419126400. Its totient is φ = 53889024.

The previous prime is 164643119. The next prime is 164643161. The reversal of 164643144 is 441346461.

164643144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458437 + ... + 458795.

It is an arithmetic number, because the mean of its divisors is an integer number (6548850).

Almost surely, 2^164643144 is an apocalyptic number.

It is an amenable number.

164643144 is an abundant number, since it is smaller than the sum of its proper divisors (254483256).

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

164643144 is a wasteful number, since it uses less digits than its factorization.

164643144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 658 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 164643144 is about 12831.3344590498. The cubic root of 164643144 is about 548.0849585010.

The spelling of 164643144 in words is "one hundred sixty-four million, six hundred forty-three thousand, one hundred forty-four".