165628826 has 16 divisors (see below), whose sum is σ = 272017440. Its totient is φ = 75011280.

The previous prime is 165628823. The next prime is 165628829. The reversal of 165628826 is 628826561.

It is an interprime number because it is at equal distance from previous prime (165628823) and next prime (165628829).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165628823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7496 + ... + 19683.

It is an arithmetic number, because the mean of its divisors is an integer number (17001090).

Almost surely, 2^165628826 is an apocalyptic number.

165628826 is a deficient number, since it is larger than the sum of its proper divisors (106388614).

165628826 is a wasteful number, since it uses less digits than its factorization.

165628826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27469.

The product of its digits is 276480, while the sum is 44.

The square root of 165628826 is about 12869.6863209637. The cubic root of 165628826 is about 549.1765374202.

The spelling of 165628826 in words is "one hundred sixty-five million, six hundred twenty-eight thousand, eight hundred twenty-six".