20068168444208 has 80 divisors (see below), whose sum is σ = 39275858032416. Its totient is φ = 9932992143360.

The previous prime is 20068168444097. The next prime is 20068168444217. The reversal of 20068168444208 is 80244486186002.

It is a self number, because there is not a number n which added to its sum of digits gives 20068168444208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047225635 + ... + 1047244797.

Almost surely, 2^{20068168444208} is an apocalyptic number.

It is an amenable number.

20068168444208 is a deficient number, since it is larger than the sum of its proper divisors (19207689588208).

20068168444208 is a wasteful number, since it uses less digits than its factorization.

20068168444208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20862 (or 20856 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 53.

The spelling of 20068168444208 in words is "twenty trillion, sixty-eight billion, one hundred sixty-eight million, four hundred forty-four thousand, two hundred eight".