243662155636 has 12 divisors (see below), whose sum is σ = 431806352320. Its totient is φ = 120288912120.

The previous prime is 243662155619. The next prime is 243662155673. The reversal of 243662155636 is 636551266342.

It is a self number, because there is not a number n which added to its sum of digits gives 243662155636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385541070 + ... + 385541701.

Almost surely, 2^243662155636 is an apocalyptic number.

It is an amenable number.

243662155636 is a deficient number, since it is larger than the sum of its proper divisors (188144196684).

243662155636 is a wasteful number, since it uses less digits than its factorization.

243662155636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771082854 (or 771082852 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 49.

The spelling of 243662155636 in words is "two hundred forty-three billion, six hundred sixty-two million, one hundred fifty-five thousand, six hundred thirty-six".