16604368799 has 2 divisors, whose sum is σ = 16604368800. Its totient is φ = 16604368798.

The previous prime is 16604368667. The next prime is 16604368883. The reversal of 16604368799 is 99786340661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16604368799 - 2¹² = 16604364703 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16604368999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8302184399 + 8302184400.

It is an arithmetic number, because the mean of its divisors is an integer number (8302184400).

Almost surely, 2^16604368799 is an apocalyptic number.

16604368799 is a deficient number, since it is larger than the sum of its proper divisors (1).

16604368799 is an equidigital number, since it uses as much as digits as its factorization.

16604368799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 16604368799 in words is "sixteen billion, six hundred four million, three hundred sixty-eight thousand, seven hundred ninety-nine".