16338666797 has 2 divisors, whose sum is σ = 16338666798. Its totient is φ = 16338666796.

The previous prime is 16338666733. The next prime is 16338666809. The reversal of 16338666797 is 79766683361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12840062596 + 3498604201 = 113314^2 + 59149^2 .

It is an emirp because it is prime and its reverse (79766683361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16338666797 - 2⁶ = 16338666733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16338666727) 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, 8169333398 + 8169333399.

It is an arithmetic number, because the mean of its divisors is an integer number (8169333399).

Almost surely, 2^16338666797 is an apocalyptic number.

It is an amenable number.

16338666797 is a deficient number, since it is larger than the sum of its proper divisors (1).

16338666797 is an equidigital number, since it uses as much as digits as its factorization.

16338666797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41150592, while the sum is 62.

The spelling of 16338666797 in words is "sixteen billion, three hundred thirty-eight million, six hundred sixty-six thousand, seven hundred ninety-seven".