165628027 has 2 divisors, whose sum is σ = 165628028. Its totient is φ = 165628026.

The previous prime is 165628013. The next prime is 165628033. The reversal of 165628027 is 720826561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165628027 - 2¹⁵ = 165595259 is a prime.

It is not a weakly prime, because it can be changed into another prime (165628927) 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 as a sum of consecutive naturals, namely, 82814013 + 82814014.

It is an arithmetic number, because the mean of its divisors is an integer number (82814014).

Almost surely, 2^165628027 is an apocalyptic number.

165628027 is a deficient number, since it is larger than the sum of its proper divisors (1).

165628027 is an equidigital number, since it uses as much as digits as its factorization.

165628027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 165628027 is about 12869.6552789886. The cubic root of 165628027 is about 549.1756543357.

The spelling of 165628027 in words is "one hundred sixty-five million, six hundred twenty-eight thousand, twenty-seven".