243155055443 has 8 divisors (see below), whose sum is σ = 256011441600.
Its totient is φ = 230304544488.
The previous prime is 243155055419. The next prime is 243155055487. The reversal of 243155055443 is 344550551342.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 243155055443 - 210 = 243155054419 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 243155055443.
It is not an unprimeable number, because it can be changed into a prime (243155051443) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383713 + ... + 1549506.
It is an arithmetic number, because the mean of its divisors is an integer number (32001430200).
Almost surely, 2243155055443 is an apocalyptic number.
243155055443 is a deficient number, since it is larger than the sum of its proper divisors (12856386157).
243155055443 is a wasteful number, since it uses less digits than its factorization.
243155055443 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2937601.
The product of its (nonzero) digits is 720000, while the sum is 41.
The spelling of 243155055443 in words is "two hundred forty-three billion, one hundred fifty-five million, fifty-five thousand, four hundred forty-three".