243233242277256 has 216 divisors, whose sum is σ = 842306381353710. Its totient is φ = 63177465415680.

The previous prime is 243233242277191. The next prime is 243233242277269. The reversal of 243233242277256 is 652772242332342.

243233242277256 is a `hidden beast` number, since 2 + 4 + 3 + 23 + 324 + 2 + 277 + 25 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 226352927700900 + 16880314576356 = 15045030^2 + 4108566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 284464281 + ... + 285318056.

Almost surely, 2^{243233242277256} is an apocalyptic number.

It is an amenable number.

243233242277256 is an abundant number, since it is smaller than the sum of its proper divisors (599073139076454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243233242277256 is a wasteful number, since it uses less digits than its factorization.

243233242277256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569782385 (or 569782360 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 54.

The spelling of 243233242277256 in words is "two hundred forty-three trillion, two hundred thirty-three billion, two hundred forty-two million, two hundred seventy-seven thousand, two hundred fifty-six".