243322653668 has 12 divisors (see below), whose sum is σ = 428922780972. Its totient is φ = 120773287680.

The previous prime is 243322653661. The next prime is 243322653719. The reversal of 243322653668 is 866356223342.

It can be written as a sum of positive squares in 2 ways, for example, as 213556742884 + 29765910784 = 462122^2 + 172528^2 .

It is not an unprimeable number, because it can be changed into a prime (243322653661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222009173 + ... + 222010268.

It is an arithmetic number, because the mean of its divisors is an integer number (35743565081).

Almost surely, 2^243322653668 is an apocalyptic number.

It is an amenable number.

243322653668 is a deficient number, since it is larger than the sum of its proper divisors (185600127304).

243322653668 is a wasteful number, since it uses less digits than its factorization.

243322653668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444019582 (or 444019580 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 50.

The spelling of 243322653668 in words is "two hundred forty-three billion, three hundred twenty-two million, six hundred fifty-three thousand, six hundred sixty-eight".