243009008560 has 40 divisors (see below), whose sum is σ = 568594674576. Its totient is φ = 96584467200.

The previous prime is 243009008491. The next prime is 243009008569. The reversal of 243009008560 is 65800900342.

243009008560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (243009008569) 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 7 ways as a sum of consecutive naturals, for example, 9661366 + ... + 9686485.

Almost surely, 2^243009008560 is an apocalyptic number.

243009008560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243009008560 is an abundant number, since it is smaller than the sum of its proper divisors (325585666016).

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

243009008560 is a wasteful number, since it uses less digits than its factorization.

243009008560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19348021 (or 19348015 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 243009008560 in words is "two hundred forty-three billion, nine million, eight thousand, five hundred sixty".