68664499446685 has 8 divisors (see below), whose sum is σ = 82487059188480. Its totient is φ = 54871826322384.

The previous prime is 68664499446559. The next prime is 68664499446737. The reversal of 68664499446685 is 58664499446686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68664499446685 - 2²¹ = 68664497349533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7471649317 + ... + 7471658506.

It is an arithmetic number, because the mean of its divisors is an integer number (10310882398560).

Almost surely, 2^{68664499446685} is an apocalyptic number.

It is an amenable number.

68664499446685 is a deficient number, since it is larger than the sum of its proper divisors (13822559741795).

68664499446685 is a wasteful number, since it uses less digits than its factorization.

68664499446685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14943308747.

The product of its digits is 51597803520, while the sum is 85.

Subtracting from 68664499446685 its reverse (58664499446686), we obtain a palindrome (9999999999999).

The spelling of 68664499446685 in words is "sixty-eight trillion, six hundred sixty-four billion, four hundred ninety-nine million, four hundred forty-six thousand, six hundred eighty-five".