917168161 has 16 divisors (see below), whose sum is σ = 1132096000. Its totient is φ = 723567168.

The previous prime is 917168141. The next prime is 917168167. The reversal of 917168161 is 161861719.

It is a cyclic number.

It is not a de Polignac number, because 917168161 - 2⁹ = 917167649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (917168167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17320 + ... + 46198.

It is an arithmetic number, because the mean of its divisors is an integer number (70756000).

Almost surely, 2^917168161 is an apocalyptic number.

917168161 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

917168161 is a deficient number, since it is larger than the sum of its proper divisors (214927839).

917168161 is a wasteful number, since it uses less digits than its factorization.

917168161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29248.

The product of its digits is 18144, while the sum is 40.

The square root of 917168161 is about 30284.7843148998. The cubic root of 917168161 is about 971.5898966120.

The spelling of 917168161 in words is "nine hundred seventeen million, one hundred sixty-eight thousand, one hundred sixty-one".