164722528 has 24 divisors (see below), whose sum is σ = 324587088. Its totient is φ = 82287744.

The previous prime is 164722507. The next prime is 164722531. The reversal of 164722528 is 825227461.

It is a happy number.

164722528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×164722528² = 54267022461421568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60525 + ... + 63187.

It is an arithmetic number, because the mean of its divisors is an integer number (13524462).

Almost surely, 2^164722528 is an apocalyptic number.

It is an amenable number.

164722528 is a deficient number, since it is larger than the sum of its proper divisors (159864560).

164722528 is a wasteful number, since it uses less digits than its factorization.

164722528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4598 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 164722528 is about 12834.4274511955. The cubic root of 164722528 is about 548.1730321865.

Adding to 164722528 its reverse (825227461), we get a palindrome (989949989).

The spelling of 164722528 in words is "one hundred sixty-four million, seven hundred twenty-two thousand, five hundred twenty-eight".