165028028 has 48 divisors (see below), whose sum is σ = 321377280. Its totient is φ = 74139120.

The previous prime is 165028007. The next prime is 165028033. The reversal of 165028028 is 820820561.

It is a junction number, because it is equal to n+sod(n) for n = 165027985 and 165028003.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 739925 + ... + 740147.

It is an arithmetic number, because the mean of its divisors is an integer number (6695360).

Almost surely, 2^165028028 is an apocalyptic number.

It is an amenable number.

165028028 is a deficient number, since it is larger than the sum of its proper divisors (156349252).

165028028 is a wasteful number, since it uses less digits than its factorization.

165028028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 165028028 is about 12846.3235207588. The cubic root of 165028028 is about 548.5117096785.

Adding to 165028028 its reverse (820820561), we get a palindrome (985848589).

The spelling of 165028028 in words is "one hundred sixty-five million, twenty-eight thousand, twenty-eight".