243645055512 has 32 divisors (see below), whose sum is σ = 615392156400. Its totient is φ = 80377749504.

The previous prime is 243645055501. The next prime is 243645055517. The reversal of 243645055512 is 215550546342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243645055517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52326937 + ... + 52331592.

Almost surely, 2^243645055512 is an apocalyptic number.

It is an amenable number.

243645055512 is an abundant number, since it is smaller than the sum of its proper divisors (371747100888).

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

243645055512 is a wasteful number, since it uses less digits than its factorization.

243645055512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104658635 (or 104658631 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 243645055512 in words is "two hundred forty-three billion, six hundred forty-five million, fifty-five thousand, five hundred twelve".