16551186360193 has 2 divisors, whose sum is σ = 16551186360194. Its totient is φ = 16551186360192.

The previous prime is 16551186360139. The next prime is 16551186360199. The reversal of 16551186360193 is 39106368115561.

Together with previous prime (16551186360139) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8891089494849 + 7660096865344 = 2981793^2 + 2767688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16551186360193 is a prime.

It is not a weakly prime, because it can be changed into another prime (16551186360199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275593180096 + 8275593180097.

It is an arithmetic number, because the mean of its divisors is an integer number (8275593180097).

Almost surely, 2^{16551186360193} is an apocalyptic number.

It is an amenable number.

16551186360193 is a deficient number, since it is larger than the sum of its proper divisors (1).

16551186360193 is an equidigital number, since it uses as much as digits as its factorization.

16551186360193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 16551186360193 in words is "sixteen trillion, five hundred fifty-one billion, one hundred eighty-six million, three hundred sixty thousand, one hundred ninety-three".