243165906768 has 40 divisors (see below), whose sum is σ = 628640318016. Its totient is φ = 80995724800.

The previous prime is 243165906757. The next prime is 243165906791. The reversal of 243165906768 is 867609561342.

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, 1795788 + ... + 1926443.

It is a 1-persistent number, because it is pandigital, but 2⋅243165906768 = 486331813536 is not.

Almost surely, 2^243165906768 is an apocalyptic number.

It is an amenable number.

243165906768 is an abundant number, since it is smaller than the sum of its proper divisors (385474411248).

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

243165906768 is a wasteful number, since it uses less digits than its factorization.

243165906768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723603 (or 3723597 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 243165906768 in words is "two hundred forty-three billion, one hundred sixty-five million, nine hundred six thousand, seven hundred sixty-eight".