165960829 has 2 divisors, whose sum is σ = 165960830. Its totient is φ = 165960828.

The previous prime is 165960827. The next prime is 165960853. The reversal of 165960829 is 928069561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119311929 + 46648900 = 10923^2 + 6830^2 .

It is a cyclic number.

It is not a de Polignac number, because 165960829 - 2¹ = 165960827 is a prime.

Together with 165960827, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165960827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82980414 + 82980415.

It is an arithmetic number, because the mean of its divisors is an integer number (82980415).

Almost surely, 2^165960829 is an apocalyptic number.

It is an amenable number.

165960829 is a deficient number, since it is larger than the sum of its proper divisors (1).

165960829 is an equidigital number, since it uses as much as digits as its factorization.

165960829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 165960829 is about 12882.5785074262. The cubic root of 165960829 is about 549.5432339914.

The spelling of 165960829 in words is "one hundred sixty-five million, nine hundred sixty thousand, eight hundred twenty-nine".