168913165 has 8 divisors (see below), whose sum is σ = 206131680. Its totient is φ = 132839952.

The previous prime is 168913163. The next prime is 168913183. The reversal of 168913165 is 561319861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168913165 - 2¹ = 168913163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168913163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285999 + ... + 286588.

It is an arithmetic number, because the mean of its divisors is an integer number (25766460).

Almost surely, 2^168913165 is an apocalyptic number.

It is an amenable number.

168913165 is a deficient number, since it is larger than the sum of its proper divisors (37218515).

168913165 is an equidigital number, since it uses as much as digits as its factorization.

168913165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572651.

The product of its digits is 38880, while the sum is 40.

The square root of 168913165 is about 12996.6597631853. The cubic root of 168913165 is about 552.7827726084.

The spelling of 168913165 in words is "one hundred sixty-eight million, nine hundred thirteen thousand, one hundred sixty-five".