243130135245616 has 80 divisors (see below), whose sum is σ = 509802588705760. Its totient is φ = 111934693877760.

The previous prime is 243130135245611. The next prime is 243130135245629. The reversal of 243130135245616 is 616542531031342.

It is a happy number.

It is a super-3 number, since 3×243130135245616³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (243130135245611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994995 + ... + 22073746.

It is an arithmetic number, because the mean of its divisors is an integer number (6372532358822).

Almost surely, 2^{243130135245616} is an apocalyptic number.

It is an amenable number.

243130135245616 is an abundant number, since it is smaller than the sum of its proper divisors (266672453460144).

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

243130135245616 is a wasteful number, since it uses less digits than its factorization.

243130135245616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23069742 (or 23069736 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

Adding to 243130135245616 its reverse (616542531031342), we get a palindrome (859672666276958).

The spelling of 243130135245616 in words is "two hundred forty-three trillion, one hundred thirty billion, one hundred thirty-five million, two hundred forty-five thousand, six hundred sixteen".