243215613763220 has 48 divisors (see below), whose sum is σ = 603845661767040. Its totient is φ = 80512754899584.

The previous prime is 243215613763169. The next prime is 243215613763289. The reversal of 243215613763220 is 22367316512342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29952657734 + ... + 29952665853.

It is an arithmetic number, because the mean of its divisors is an integer number (12580117953480).

Almost surely, 2^{243215613763220} is an apocalyptic number.

243215613763220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243215613763220 is an abundant number, since it is smaller than the sum of its proper divisors (360630048003820).

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

243215613763220 is a wasteful number, since it uses less digits than its factorization.

243215613763220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59905323632 (or 59905323630 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 243215613763220 in words is "two hundred forty-three trillion, two hundred fifteen billion, six hundred thirteen million, seven hundred sixty-three thousand, two hundred twenty".