205555563441351 has 12 divisors (see below), whose sum is σ = 296913881379960. Its totient is φ = 137036908566960.

The previous prime is 205555563441281. The next prime is 205555563441379. The reversal of 205555563441351 is 153144365555502.

205555563441351 is a `hidden beast` number, since 2 + 0 + 5 + 5 + 5 + 5 + 563 + 4 + 41 + 35 + 1 = 666.

It is not a de Polignac number, because 205555563441351 - 2³³ = 205546973506759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205555563441451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 914616 + ... + 20296493.

It is an arithmetic number, because the mean of its divisors is an integer number (24742823448330).

Almost surely, 2^{205555563441351} is an apocalyptic number.

205555563441351 is a deficient number, since it is larger than the sum of its proper divisors (91358317938609).

205555563441351 is a wasteful number, since it uses less digits than its factorization.

205555563441351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22287886 (or 22287883 counting only the distinct ones).

The product of its (nonzero) digits is 27000000, while the sum is 54.

The spelling of 205555563441351 in words is "two hundred five trillion, five hundred fifty-five billion, five hundred sixty-three million, four hundred forty-one thousand, three hundred fifty-one".