243066444020 has 24 divisors (see below), whose sum is σ = 510567661800. Its totient is φ = 97202172032.

The previous prime is 243066443947. The next prime is 243066444037. The reversal of 243066444020 is 20444660342.

It can be written as a sum of positive squares in 4 ways, for example, as 1352621284 + 241713822736 = 36778^2 + 491644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443575 + ... + 1603134.

It is an arithmetic number, because the mean of its divisors is an integer number (21273652575).

Almost surely, 2^243066444020 is an apocalyptic number.

243066444020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243066444020 is an abundant number, since it is smaller than the sum of its proper divisors (267501217780).

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

243066444020 is a wasteful number, since it uses less digits than its factorization.

243066444020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050707 (or 3050705 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

The spelling of 243066444020 in words is "two hundred forty-three billion, sixty-six million, four hundred forty-four thousand, twenty".