16555455589 has 2 divisors, whose sum is σ = 16555455590. Its totient is φ = 16555455588.

The previous prime is 16555455551. The next prime is 16555455607. The reversal of 16555455589 is 98555455561.

16555455589 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 can be written as a sum of positive squares in only one way, i.e., 14588533089 + 1966922500 = 120783^2 + 44350^2 .

It is a cyclic number.

It is not a de Polignac number, because 16555455589 - 2⁷ = 16555455461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16555455509) 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, 8277727794 + 8277727795.

It is an arithmetic number, because the mean of its divisors is an integer number (8277727795).

Almost surely, 2^16555455589 is an apocalyptic number.

It is an amenable number.

16555455589 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555455589 is an equidigital number, since it uses as much as digits as its factorization.

16555455589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000000, while the sum is 58.

The spelling of 16555455589 in words is "sixteen billion, five hundred fifty-five million, four hundred fifty-five thousand, five hundred eighty-nine".