551043345163 has 2 divisors, whose sum is σ = 551043345164. Its totient is φ = 551043345162.

The previous prime is 551043345133. The next prime is 551043345221. The reversal of 551043345163 is 361543340155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551043345163 - 2¹³ = 551043336971 is a prime.

It is not a weakly prime, because it can be changed into another prime (551043345133) 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, 275521672581 + 275521672582.

It is an arithmetic number, because the mean of its divisors is an integer number (275521672582).

Almost surely, 2^551043345163 is an apocalyptic number.

551043345163 is a deficient number, since it is larger than the sum of its proper divisors (1).

551043345163 is an equidigital number, since it uses as much as digits as its factorization.

551043345163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 551043345163 in words is "five hundred fifty-one billion, forty-three million, three hundred forty-five thousand, one hundred sixty-three".