165530016149 has 2 divisors, whose sum is σ = 165530016150. Its totient is φ = 165530016148.

The previous prime is 165530016121. The next prime is 165530016191. The reversal of 165530016149 is 941610035561.

165530016149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103164943249 + 62365072900 = 321193^2 + 249730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165530016149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165530016349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82765008074 + 82765008075.

It is an arithmetic number, because the mean of its divisors is an integer number (82765008075).

Almost surely, 2^165530016149 is an apocalyptic number.

It is an amenable number.

165530016149 is a deficient number, since it is larger than the sum of its proper divisors (1).

165530016149 is an equidigital number, since it uses as much as digits as its factorization.

165530016149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 165530016149 in words is "one hundred sixty-five billion, five hundred thirty million, sixteen thousand, one hundred forty-nine".