16555272577399 has 2 divisors, whose sum is σ = 16555272577400. Its totient is φ = 16555272577398.

The previous prime is 16555272577289. The next prime is 16555272577433. The reversal of 16555272577399 is 99377527255561.

It is a strong prime.

It is an emirp because it is prime and its reverse (99377527255561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16555272577399 - 2¹¹ = 16555272575351 is a prime.

It is a super-2 number, since 2×16555272577399² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16555272677399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277636288699 + 8277636288700.

It is an arithmetic number, because the mean of its divisors is an integer number (8277636288700).

Almost surely, 2^{16555272577399} is an apocalyptic number.

16555272577399 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555272577399 is an equidigital number, since it uses as much as digits as its factorization.

16555272577399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1250235000, while the sum is 73.

The spelling of 16555272577399 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, five hundred seventy-seven thousand, three hundred ninety-nine".