165628051 has 2 divisors, whose sum is σ = 165628052. Its totient is φ = 165628050.

The previous prime is 165628033. The next prime is 165628061. The reversal of 165628051 is 150826561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165628051 - 2¹¹ = 165626003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165627998 and 165628016.

It is not a weakly prime, because it can be changed into another prime (165628061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82814025 + 82814026.

It is an arithmetic number, because the mean of its divisors is an integer number (82814026).

Almost surely, 2^165628051 is an apocalyptic number.

165628051 is a deficient number, since it is larger than the sum of its proper divisors (1).

165628051 is an equidigital number, since it uses as much as digits as its factorization.

165628051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 165628051 is about 12869.6562114145. The cubic root of 165628051 is about 549.1756808614.

The spelling of 165628051 in words is "one hundred sixty-five million, six hundred twenty-eight thousand, fifty-one".