243223056065 has 8 divisors (see below), whose sum is σ = 318401091648. Its totient is φ = 176889495280.

The previous prime is 243223056031. The next prime is 243223056073. The reversal of 243223056065 is 560650322342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243223056065 - 2⁶ = 243223056001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2211118637 + ... + 2211118746.

It is an arithmetic number, because the mean of its divisors is an integer number (39800136456).

Almost surely, 2^243223056065 is an apocalyptic number.

It is an amenable number.

243223056065 is a deficient number, since it is larger than the sum of its proper divisors (75178035583).

243223056065 is a wasteful number, since it uses less digits than its factorization.

243223056065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422237399.

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 243223056065 in words is "two hundred forty-three billion, two hundred twenty-three million, fifty-six thousand, sixty-five".