16551555143 has 2 divisors, whose sum is σ = 16551555144. Its totient is φ = 16551555142.

The previous prime is 16551555131. The next prime is 16551555151. The reversal of 16551555143 is 34155515561.

16551555143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16551555143 - 2²⁸ = 16283119687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16551555143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16551555103) 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, 8275777571 + 8275777572.

It is an arithmetic number, because the mean of its divisors is an integer number (8275777572).

Almost surely, 2^16551555143 is an apocalyptic number.

16551555143 is a deficient number, since it is larger than the sum of its proper divisors (1).

16551555143 is an equidigital number, since it uses as much as digits as its factorization.

16551555143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225000, while the sum is 41.

The spelling of 16551555143 in words is "sixteen billion, five hundred fifty-one million, five hundred fifty-five thousand, one hundred forty-three".