164640316 has 6 divisors (see below), whose sum is σ = 288120560. Its totient is φ = 82320156.

The previous prime is 164640293. The next prime is 164640317. The reversal of 164640316 is 613046461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164640317) 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 as a sum of consecutive naturals, namely, 20580036 + ... + 20580043.

Almost surely, 2^164640316 is an apocalyptic number.

It is an amenable number.

164640316 is a deficient number, since it is larger than the sum of its proper divisors (123480244).

164640316 is a wasteful number, since it uses less digits than its factorization.

164640316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41160083 (or 41160081 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 164640316 is about 12831.2242595942. The cubic root of 164640316 is about 548.0818204148.

Adding to 164640316 its reverse (613046461), we get a palindrome (777686777).

The spelling of 164640316 in words is "one hundred sixty-four million, six hundred forty thousand, three hundred sixteen".