231768716256 has 720 divisors, whose sum is σ = 861861258720. Its totient is φ = 59806771200.

The previous prime is 231768716251. The next prime is 231768716281. The reversal of 231768716256 is 652617867132.

231768716256 is a `hidden beast` number, since 2 + 3 + 1 + 7 + 6 + 8 + 7 + 1 + 625 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231768716251) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 502751866 + ... + 502752326.

It is an arithmetic number, because the mean of its divisors is an integer number (1197029526).

Almost surely, 2^231768716256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231768716256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430930629360).

231768716256 is an abundant number, since it is smaller than the sum of its proper divisors (630092542464).

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

231768716256 is a wasteful number, since it uses less digits than its factorization.

231768716256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 713 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 231768716256 in words is "two hundred thirty-one billion, seven hundred sixty-eight million, seven hundred sixteen thousand, two hundred fifty-six".