16333664387 has 2 divisors, whose sum is σ = 16333664388. Its totient is φ = 16333664386.

The previous prime is 16333664363. The next prime is 16333664401. The reversal of 16333664387 is 78346633361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16333664387 - 2⁸ = 16333664131 is a prime.

It is not a weakly prime, because it can be changed into another prime (16333664357) 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 as a sum of consecutive naturals, namely, 8166832193 + 8166832194.

It is an arithmetic number, because the mean of its divisors is an integer number (8166832194).

Almost surely, 2^16333664387 is an apocalyptic number.

16333664387 is a deficient number, since it is larger than the sum of its proper divisors (1).

16333664387 is an equidigital number, since it uses as much as digits as its factorization.

16333664387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 50.

The spelling of 16333664387 in words is "sixteen billion, three hundred thirty-three million, six hundred sixty-four thousand, three hundred eighty-seven".