168068216 has 8 divisors (see below), whose sum is σ = 315127920. Its totient is φ = 84034104.

The previous prime is 168068213. The next prime is 168068231. The reversal of 168068216 is 612860861.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 168068216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168068213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10504256 + ... + 10504271.

It is an arithmetic number, because the mean of its divisors is an integer number (39390990).

Almost surely, 2^168068216 is an apocalyptic number.

It is an amenable number.

168068216 is a deficient number, since it is larger than the sum of its proper divisors (147059704).

168068216 is a wasteful number, since it uses less digits than its factorization.

168068216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21008533 (or 21008529 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 168068216 is about 12964.1126190727. The cubic root of 168068216 is about 551.8595088097.

It can be divided in two parts, 1680 and 68216, that added together give a palindrome (69896).

The spelling of 168068216 in words is "one hundred sixty-eight million, sixty-eight thousand, two hundred sixteen".