243155555343 has 16 divisors (see below), whose sum is σ = 362524920160. Its totient is φ = 161071193088.

The previous prime is 243155555327. The next prime is 243155555347. The reversal of 243155555343 is 343555551342.

243155555343 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 5 + 55 + 553 + 43 = 666.

243155555343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243155555343 - 2⁴ = 243155555327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243155555347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28676530 + ... + 28685007.

It is an arithmetic number, because the mean of its divisors is an integer number (22657807510).

Almost surely, 2^243155555343 is an apocalyptic number.

243155555343 is a deficient number, since it is larger than the sum of its proper divisors (119369364817).

243155555343 is a wasteful number, since it uses less digits than its factorization.

243155555343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57361703 (or 57361697 counting only the distinct ones).

The product of its digits is 2700000, while the sum is 45.

The spelling of 243155555343 in words is "two hundred forty-three billion, one hundred fifty-five million, five hundred fifty-five thousand, three hundred forty-three".