16816057 has 2 divisors, whose sum is σ = 16816058. Its totient is φ = 16816056.

The previous prime is 16816039. The next prime is 16816073. The reversal of 16816057 is 75061861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12931216 + 3884841 = 3596^2 + 1971^2 .

It is a cyclic number.

It is not a de Polignac number, because 16816057 - 2¹¹ = 16814009 is a prime.

It is not a weakly prime, because it can be changed into another prime (16816087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8408028 + 8408029.

It is an arithmetic number, because the mean of its divisors is an integer number (8408029).

Almost surely, 2^16816057 is an apocalyptic number.

It is an amenable number.

16816057 is a deficient number, since it is larger than the sum of its proper divisors (1).

16816057 is an equidigital number, since it uses as much as digits as its factorization.

16816057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 16816057 is about 4100.7385920100. The cubic root of 16816057 is about 256.1974032839.

The spelling of 16816057 in words is "sixteen million, eight hundred sixteen thousand, fifty-seven".