233256325681 has 2 divisors, whose sum is σ = 233256325682. Its totient is φ = 233256325680.

The previous prime is 233256325669. The next prime is 233256325741. The reversal of 233256325681 is 186523652332.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161748752400 + 71507573281 = 402180^2 + 267409^2 .

It is a cyclic number.

It is not a de Polignac number, because 233256325681 - 2¹¹ = 233256323633 is a prime.

It is a super-2 number, since 2×233256325681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (233259325681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116628162840 + 116628162841.

It is an arithmetic number, because the mean of its divisors is an integer number (116628162841).

Almost surely, 2^233256325681 is an apocalyptic number.

It is an amenable number.

233256325681 is a deficient number, since it is larger than the sum of its proper divisors (1).

233256325681 is an equidigital number, since it uses as much as digits as its factorization.

233256325681 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 233256325681 in words is "two hundred thirty-three billion, two hundred fifty-six million, three hundred twenty-five thousand, six hundred eighty-one".