18206411705668 has 24 divisors (see below), whose sum is σ = 32398972119360. Its totient is φ = 8950837577760.

The previous prime is 18206411705663. The next prime is 18206411705711. The reversal of 18206411705668 is 86650711460281.

It is not an unprimeable number, because it can be changed into a prime (18206411705663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 159323896 + ... + 159438127.

It is an arithmetic number, because the mean of its divisors is an integer number (1349957171640).

Almost surely, 2^{18206411705668} is an apocalyptic number.

It is an amenable number.

18206411705668 is a deficient number, since it is larger than the sum of its proper divisors (14192560413692).

18206411705668 is a wasteful number, since it uses less digits than its factorization.

18206411705668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318762267 (or 318762265 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 18206411705668 in words is "eighteen trillion, two hundred six billion, four hundred eleven million, seven hundred five thousand, six hundred sixty-eight".