168688012 has 12 divisors (see below), whose sum is σ = 305383680. Its totient is φ = 81435536.

The previous prime is 168687971. The next prime is 168688027. The reversal of 168688012 is 210886861.

168688012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726988 + ... + 727219.

It is an arithmetic number, because the mean of its divisors is an integer number (25448640).

Almost surely, 2^168688012 is an apocalyptic number.

It is an amenable number.

168688012 is a deficient number, since it is larger than the sum of its proper divisors (136695668).

168688012 is a wasteful number, since it uses less digits than its factorization.

168688012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454240 (or 1454238 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 168688012 is about 12987.9949183852. The cubic root of 168688012 is about 552.5370525849.

It can be divided in two parts, 1686 and 88012, that added together give a palindrome (89698).

The spelling of 168688012 in words is "one hundred sixty-eight million, six hundred eighty-eight thousand, twelve".