68160234661 has 2 divisors, whose sum is σ = 68160234662. Its totient is φ = 68160234660.

The previous prime is 68160234619. The next prime is 68160234689. The reversal of 68160234661 is 16643206186.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67865460100 + 294774561 = 260510^2 + 17169^2 .

It is a cyclic number.

It is not a de Polignac number, because 68160234661 - 2¹³ = 68160226469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68160204661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34080117330 + 34080117331.

It is an arithmetic number, because the mean of its divisors is an integer number (34080117331).

Almost surely, 2^68160234661 is an apocalyptic number.

It is an amenable number.

68160234661 is a deficient number, since it is larger than the sum of its proper divisors (1).

68160234661 is an equidigital number, since it uses as much as digits as its factorization.

68160234661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 68160234661 in words is "sixty-eight billion, one hundred sixty million, two hundred thirty-four thousand, six hundred sixty-one".