16728655337 has 2 divisors, whose sum is σ = 16728655338. Its totient is φ = 16728655336.

The previous prime is 16728655331. The next prime is 16728655379. The reversal of 16728655337 is 73355682761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9956846656 + 6771808681 = 99784^2 + 82291^2 .

It is a cyclic number.

It is not a de Polignac number, because 16728655337 - 2³⁰ = 15654913513 is a prime.

It is not a weakly prime, because it can be changed into another prime (16728655331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8364327668 + 8364327669.

It is an arithmetic number, because the mean of its divisors is an integer number (8364327669).

Almost surely, 2^16728655337 is an apocalyptic number.

It is an amenable number.

16728655337 is a deficient number, since it is larger than the sum of its proper divisors (1).

16728655337 is an equidigital number, since it uses as much as digits as its factorization.

16728655337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 53.

The spelling of 16728655337 in words is "sixteen billion, seven hundred twenty-eight million, six hundred fifty-five thousand, three hundred thirty-seven".