16868518668335 has 16 divisors (see below), whose sum is σ = 21693192520896. Its totient is φ = 12559216716288.

The previous prime is 16868518668319. The next prime is 16868518668343. The reversal of 16868518668335 is 53386681586861.

It is a cyclic number.

It is not a de Polignac number, because 16868518668335 - 2⁴ = 16868518668319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1982195354 + ... + 1982203863.

It is an arithmetic number, because the mean of its divisors is an integer number (1355824532556).

Almost surely, 2^{16868518668335} is an apocalyptic number.

16868518668335 is a deficient number, since it is larger than the sum of its proper divisors (4824673852561).

16868518668335 is a wasteful number, since it uses less digits than its factorization.

16868518668335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964399282.

The product of its digits is 1194393600, while the sum is 74.

The spelling of 16868518668335 in words is "sixteen trillion, eight hundred sixty-eight billion, five hundred eighteen million, six hundred sixty-eight thousand, three hundred thirty-five".