16555272273713 has 2 divisors, whose sum is σ = 16555272273714. Its totient is φ = 16555272273712.

The previous prime is 16555272273689. The next prime is 16555272273719. The reversal of 16555272273713 is 31737227255561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15440121489664 + 1115150784049 = 3929392^2 + 1056007^2 .

It is a cyclic number.

It is not a de Polignac number, because 16555272273713 - 2⁸ = 16555272273457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16555272273719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277636136856 + 8277636136857.

It is an arithmetic number, because the mean of its divisors is an integer number (8277636136857).

Almost surely, 2^{16555272273713} is an apocalyptic number.

It is an amenable number.

16555272273713 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555272273713 is an equidigital number, since it uses as much as digits as its factorization.

16555272273713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18522000, while the sum is 56.

The spelling of 16555272273713 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, two hundred seventy-three thousand, seven hundred thirteen".