243550620067720 has 32 divisors (see below), whose sum is σ = 626273023032000. Its totient is φ = 83503069737408.

The previous prime is 243550620067663. The next prime is 243550620067721. The reversal of 243550620067720 is 27760026055342.

It is not an unprimeable number, because it can be changed into a prime (243550620067721) 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, 434911821270 + ... + 434911821829.

It is an arithmetic number, because the mean of its divisors is an integer number (19571031969750).

Almost surely, 2^{243550620067720} is an apocalyptic number.

243550620067720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243550620067720 is an abundant number, since it is smaller than the sum of its proper divisors (382722402964280).

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

243550620067720 is a wasteful number, since it uses less digits than its factorization.

243550620067720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869823643117 (or 869823643113 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 243550620067720 in words is "two hundred forty-three trillion, five hundred fifty billion, six hundred twenty million, sixty-seven thousand, seven hundred twenty".