235351163561 has 2 divisors, whose sum is σ = 235351163562. Its totient is φ = 235351163560.

The previous prime is 235351163557. The next prime is 235351163659. The reversal of 235351163561 is 165361153532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235035888025 + 315275536 = 484805^2 + 17756^2 .

It is a cyclic number.

It is not a de Polignac number, because 235351163561 - 2² = 235351163557 is a prime.

It is not a weakly prime, because it can be changed into another prime (235351163501) 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, 117675581780 + 117675581781.

It is an arithmetic number, because the mean of its divisors is an integer number (117675581781).

Almost surely, 2^235351163561 is an apocalyptic number.

It is an amenable number.

235351163561 is a deficient number, since it is larger than the sum of its proper divisors (1).

235351163561 is an equidigital number, since it uses as much as digits as its factorization.

235351163561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243000, while the sum is 41.

The spelling of 235351163561 in words is "two hundred thirty-five billion, three hundred fifty-one million, one hundred sixty-three thousand, five hundred sixty-one".