165896099 has 2 divisors, whose sum is σ = 165896100. Its totient is φ = 165896098.

The previous prime is 165896069. The next prime is 165896243. The reversal of 165896099 is 990698561.

It is a weak prime.

It is an emirp because it is prime and its reverse (990698561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165896099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165896099.

It is not a weakly prime, because it can be changed into another prime (165896009) 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, 82948049 + 82948050.

It is an arithmetic number, because the mean of its divisors is an integer number (82948050).

Almost surely, 2^165896099 is an apocalyptic number.

165896099 is a deficient number, since it is larger than the sum of its proper divisors (1).

165896099 is an equidigital number, since it uses as much as digits as its factorization.

165896099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 165896099 is about 12880.0659548001. The cubic root of 165896099 is about 549.4717782560.

The spelling of 165896099 in words is "one hundred sixty-five million, eight hundred ninety-six thousand, ninety-nine".