68066668 has 12 divisors (see below), whose sum is σ = 119183512. Its totient is φ = 34014240.

The previous prime is 68066653. The next prime is 68066671. The reversal of 68066668 is 86666086.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5896 + ... + 13072.

Almost surely, 2^68066668 is an apocalyptic number.

It is an amenable number.

68066668 is a deficient number, since it is larger than the sum of its proper divisors (51116844).

68066668 is a wasteful number, since it uses less digits than its factorization.

68066668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9552 (or 9550 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 68066668 is about 8250.2526021935. The cubic root of 68066668 is about 408.2988567124.

The spelling of 68066668 in words is "sixty-eight million, sixty-six thousand, six hundred sixty-eight".