233256325640 has 64 divisors (see below), whose sum is σ = 565504072560. Its totient is φ = 86078776320.

The previous prime is 233256325639. The next prime is 233256325657. The reversal of 233256325640 is 46523652332.

It can be written as a sum of positive squares in 8 ways, for example, as 3878549284 + 229377776356 = 62278^2 + 478934^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847202 + ... + 1088238.

Almost surely, 2^233256325640 is an apocalyptic number.

233256325640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233256325640 is an abundant number, since it is smaller than the sum of its proper divisors (332247746920).

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

233256325640 is a wasteful number, since it uses less digits than its factorization.

233256325640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242922 (or 242918 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 41.

Adding to 233256325640 its reverse (46523652332), we get a palindrome (279779977972).

The spelling of 233256325640 in words is "two hundred thirty-three billion, two hundred fifty-six million, three hundred twenty-five thousand, six hundred forty".