233812644661 has 2 divisors, whose sum is σ = 233812644662. Its totient is φ = 233812644660.

The previous prime is 233812644631. The next prime is 233812644691. The reversal of 233812644661 is 166446218332.

233812644661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (233812644631) and next prime (233812644691).

It can be written as a sum of positive squares in only one way, i.e., 164932642161 + 68880002500 = 406119^2 + 262450^2 .

It is a cyclic number.

It is not a de Polignac number, because 233812644661 - 2²⁹ = 233275773749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233812644631) 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 as a sum of consecutive naturals, namely, 116906322330 + 116906322331.

It is an arithmetic number, because the mean of its divisors is an integer number (116906322331).

Almost surely, 2^233812644661 is an apocalyptic number.

It is an amenable number.

233812644661 is a deficient number, since it is larger than the sum of its proper divisors (1).

233812644661 is an equidigital number, since it uses as much as digits as its factorization.

233812644661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 46.

The spelling of 233812644661 in words is "two hundred thirty-three billion, eight hundred twelve million, six hundred forty-four thousand, six hundred sixty-one".