16555220304967 has 2 divisors, whose sum is σ = 16555220304968. Its totient is φ = 16555220304966.

The previous prime is 16555220304947. The next prime is 16555220305007. The reversal of 16555220304967 is 76940302255561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16555220304967 - 2⁷ = 16555220304839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16555220304907) 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, 8277610152483 + 8277610152484.

It is an arithmetic number, because the mean of its divisors is an integer number (8277610152484).

Almost surely, 2^{16555220304967} is an apocalyptic number.

16555220304967 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555220304967 is an equidigital number, since it uses as much as digits as its factorization.

16555220304967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 16555220304967 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty million, three hundred four thousand, nine hundred sixty-seven".