16663303799 has 8 divisors (see below), whose sum is σ = 17600850432. Its totient is φ = 15750758520.

The previous prime is 16663303781. The next prime is 16663303817. The reversal of 16663303799 is 99730336661.

It is an interprime number because it is at equal distance from previous prime (16663303781) and next prime (16663303817).

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 16663303799 - 2⁸ = 16663303543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16663303799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16663300799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6248969 + ... + 6251634.

It is an arithmetic number, because the mean of its divisors is an integer number (2200106304).

Almost surely, 2^16663303799 is an apocalyptic number.

16663303799 is a deficient number, since it is larger than the sum of its proper divisors (937546633).

16663303799 is a wasteful number, since it uses less digits than its factorization.

16663303799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12500677.

The product of its (nonzero) digits is 3306744, while the sum is 53.

The spelling of 16663303799 in words is "sixteen billion, six hundred sixty-three million, three hundred three thousand, seven hundred ninety-nine".