68066460912896 has 144 divisors (see below), whose sum is σ = 140879196911040. Its totient is φ = 32783264317440.

The previous prime is 68066460912869. The next prime is 68066460913063. The reversal of 68066460912896 is 69821906466086.

It is a congruent number.

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, 13648776515 + ... + 13648781501.

Almost surely, 2^{68066460912896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68066460912896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70439598455520).

68066460912896 is an abundant number, since it is smaller than the sum of its proper divisors (72812735998144).

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

68066460912896 is a wasteful number, since it uses less digits than its factorization.

68066460912896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8940 (or 8926 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 71.

The spelling of 68066460912896 in words is "sixty-eight trillion, sixty-six billion, four hundred sixty million, nine hundred twelve thousand, eight hundred ninety-six".