243314017680 has 160 divisors (see below), whose sum is σ = 786316243968. Its totient is φ = 62168832000.

The previous prime is 243314017679. The next prime is 243314017741. The reversal of 243314017680 is 86710413342.

It is a super-2 number, since 2×243314017680² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589542 + ... + 913338.

Almost surely, 2^243314017680 is an apocalyptic number.

243314017680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243314017680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393158121984).

243314017680 is an abundant number, since it is smaller than the sum of its proper divisors (543002226288).

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

243314017680 is a wasteful number, since it uses less digits than its factorization.

243314017680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323945 (or 323939 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 243314017680 in words is "two hundred forty-three billion, three hundred fourteen million, seventeen thousand, six hundred eighty".