168983906136 has 32 divisors (see below), whose sum is σ = 428409907200. Its totient is φ = 55534616480.

The previous prime is 168983906131. The next prime is 168983906149. The reversal of 168983906136 is 631609389861.

168983906136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168983906136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168983906131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49582776 + ... + 49586183.

It is an arithmetic number, because the mean of its divisors is an integer number (13387809600).

Almost surely, 2^168983906136 is an apocalyptic number.

It is an amenable number.

168983906136 is an abundant number, since it is smaller than the sum of its proper divisors (259426001064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168983906136 is a wasteful number, since it uses less digits than its factorization.

168983906136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99169039 (or 99169035 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 168983906136 in words is "one hundred sixty-eight billion, nine hundred eighty-three million, nine hundred six thousand, one hundred thirty-six".