165360061 has 2 divisors, whose sum is σ = 165360062. Its totient is φ = 165360060.

The previous prime is 165360031. The next prime is 165360079. The reversal of 165360061 is 160063561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110880900 + 54479161 = 10530^2 + 7381^2 .

It is a cyclic number.

It is not a de Polignac number, because 165360061 - 2⁷ = 165359933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165360031) 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, 82680030 + 82680031.

It is an arithmetic number, because the mean of its divisors is an integer number (82680031).

Almost surely, 2^165360061 is an apocalyptic number.

It is an amenable number.

165360061 is a deficient number, since it is larger than the sum of its proper divisors (1).

165360061 is an equidigital number, since it uses as much as digits as its factorization.

165360061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 165360061 is about 12859.2402963783. The cubic root of 165360061 is about 548.8793280033.

The spelling of 165360061 in words is "one hundred sixty-five million, three hundred sixty thousand, sixty-one".