231368523655680 has 640 divisors, whose sum is σ = 881417841004800. Its totient is φ = 57348129226752.

The previous prime is 231368523655673. The next prime is 231368523655721. The reversal of 231368523655680 is 86556325863132.

231368523655680 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 6 + 8 + 5 + 2 + 3 + 65 + 568 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67941802 + ... + 71265878.

It is an arithmetic number, because the mean of its divisors is an integer number (1377215376570).

Almost surely, 2^{231368523655680} is an apocalyptic number.

231368523655680 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 231368523655680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440708920502400).

231368523655680 is an abundant number, since it is smaller than the sum of its proper divisors (650049317349120).

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

231368523655680 is a wasteful number, since it uses less digits than its factorization.

231368523655680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324181 (or 3324159 counting only the distinct ones).

The product of its (nonzero) digits is 186624000, while the sum is 63.

The spelling of 231368523655680 in words is "two hundred thirty-one trillion, three hundred sixty-eight billion, five hundred twenty-three million, six hundred fifty-five thousand, six hundred eighty".