168968968826 has 16 divisors (see below), whose sum is σ = 289939902720. Its totient is φ = 72345569040.

The previous prime is 168968968823. The next prime is 168968968879. The reversal of 168968968826 is 628869869861.

It is a super-2 number, since 2×168968968826² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168968968823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5793545 + ... + 5822636.

It is an arithmetic number, because the mean of its divisors is an integer number (18121243920).

Almost surely, 2^168968968826 is an apocalyptic number.

168968968826 is a deficient number, since it is larger than the sum of its proper divisors (120970933894).

168968968826 is a wasteful number, since it uses less digits than its factorization.

168968968826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11617229.

The product of its digits is 859963392, while the sum is 77.

The spelling of 168968968826 in words is "one hundred sixty-eight billion, nine hundred sixty-eight million, nine hundred sixty-eight thousand, eight hundred twenty-six".