232317154640 has 40 divisors (see below), whose sum is σ = 542059634088. Its totient is φ = 92596152320.

The previous prime is 232317154639. The next prime is 232317154649. The reversal of 232317154640 is 46451713232.

232317154640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6589542976 + 225727611664 = 81176^2 + 475108^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 232317154594 and 232317154603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232317154649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5144717 + ... + 5189676.

Almost surely, 2^232317154640 is an apocalyptic number.

232317154640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232317154640 is an abundant number, since it is smaller than the sum of its proper divisors (309742479448).

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

232317154640 is a wasteful number, since it uses less digits than its factorization.

232317154640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10334687 (or 10334681 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

Adding to 232317154640 its reverse (46451713232), we get a palindrome (278768867872).

The spelling of 232317154640 in words is "two hundred thirty-two billion, three hundred seventeen million, one hundred fifty-four thousand, six hundred forty".