168718912 has 14 divisors (see below), whose sum is σ = 334801718. Its totient is φ = 84359424.

The previous prime is 168718903. The next prime is 168718919. The reversal of 168718912 is 219817861.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 154157056 + 14561856 = 12416^2 + 3816^2 .

It is not an unprimeable number, because it can be changed into a prime (168718919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1318053 + ... + 1318180.

Almost surely, 2^168718912 is an apocalyptic number.

It is an amenable number.

168718912 is a deficient number, since it is larger than the sum of its proper divisors (166082806).

168718912 is an equidigital number, since it uses as much as digits as its factorization.

168718912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636245 (or 2636235 counting only the distinct ones).

The product of its digits is 48384, while the sum is 43.

The square root of 168718912 is about 12989.1844239737. The cubic root of 168718912 is about 552.5707881427.

The spelling of 168718912 in words is "one hundred sixty-eight million, seven hundred eighteen thousand, nine hundred twelve".