9993668663999 has 4 divisors (see below), whose sum is σ = 10015926278400. Its totient is φ = 9971411049600.

The previous prime is 9993668663983. The next prime is 9993668664011.

9993668663999 is nontrivially palindromic in base 10.

9993668663999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9993668663999 - 2⁴ = 9993668663983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9993668663939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11128806527 + ... + 11128807424.

It is an arithmetic number, because the mean of its divisors is an integer number (2503981569600).

Almost surely, 2^{9993668663999} is an apocalyptic number.

9993668663999 is a deficient number, since it is larger than the sum of its proper divisors (22257614401).

9993668663999 is a wasteful number, since it uses less digits than its factorization.

9993668663999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22257614400.

The product of its digits is 49589822592, while the sum is 92.

The spelling of 9993668663999 in words is "nine trillion, nine hundred ninety-three billion, six hundred sixty-eight million, six hundred sixty-three thousand, nine hundred ninety-nine".