164323215424 has 21 divisors (see below), whose sum is σ = 326085315951. Its totient is φ = 82159986240.

The previous prime is 164323215391. The next prime is 164323215451. The reversal of 164323215424 is 424512323461.

The square root of 164323215424 is 405368.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×164323215424² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 3217609 + ... + 3268279.

Almost surely, 2^164323215424 is an apocalyptic number.

164323215424 is the 405368-th square number.

It is an amenable number.

164323215424 is a deficient number, since it is larger than the sum of its proper divisors (161762100527).

164323215424 is an frugal number, since it uses more digits than its factorization.

164323215424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101354 (or 50673 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

Adding to 164323215424 its reverse (424512323461), we get a palindrome (588835538885).

The spelling of 164323215424 in words is "one hundred sixty-four billion, three hundred twenty-three million, two hundred fifteen thousand, four hundred twenty-four".