16504946837 has 2 divisors, whose sum is σ = 16504946838. Its totient is φ = 16504946836.

The previous prime is 16504946819. The next prime is 16504946903. The reversal of 16504946837 is 73864940561.

16504946837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16504797841 + 148996 = 128471^2 + 386^2 .

It is a cyclic number.

It is not a de Polignac number, because 16504946837 - 2²⁸ = 16236511381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16504942837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8252473418 + 8252473419.

It is an arithmetic number, because the mean of its divisors is an integer number (8252473419).

Almost surely, 2^16504946837 is an apocalyptic number.

It is an amenable number.

16504946837 is a deficient number, since it is larger than the sum of its proper divisors (1).

16504946837 is an equidigital number, since it uses as much as digits as its factorization.

16504946837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 16504946837 in words is "sixteen billion, five hundred four million, nine hundred forty-six thousand, eight hundred thirty-seven".