16765385803 has 2 divisors, whose sum is σ = 16765385804. Its totient is φ = 16765385802.

The previous prime is 16765385761. The next prime is 16765385863. The reversal of 16765385803 is 30858356761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16765385803 - 2⁹ = 16765385291 is a prime.

It is a super-2 number, since 2×16765385803² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16765385863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8382692901 + 8382692902.

It is an arithmetic number, because the mean of its divisors is an integer number (8382692902).

Almost surely, 2^16765385803 is an apocalyptic number.

16765385803 is a deficient number, since it is larger than the sum of its proper divisors (1).

16765385803 is an equidigital number, since it uses as much as digits as its factorization.

16765385803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 16765385803 in words is "sixteen billion, seven hundred sixty-five million, three hundred eighty-five thousand, eight hundred three".