16555232878183 has 2 divisors, whose sum is σ = 16555232878184. Its totient is φ = 16555232878182.

The previous prime is 16555232878181. The next prime is 16555232878207. The reversal of 16555232878183 is 38187823255561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16555232878183 - 2¹ = 16555232878181 is a prime.

Together with 16555232878181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16555232878181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277616439091 + 8277616439092.

It is an arithmetic number, because the mean of its divisors is an integer number (8277616439092).

Almost surely, 2^{16555232878183} is an apocalyptic number.

16555232878183 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555232878183 is an equidigital number, since it uses as much as digits as its factorization.

16555232878183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768000, while the sum is 64.

The spelling of 16555232878183 in words is "sixteen trillion, five hundred fifty-five billion, two hundred thirty-two million, eight hundred seventy-eight thousand, one hundred eighty-three".