265160909857 has 2 divisors, whose sum is σ = 265160909858. Its totient is φ = 265160909856.

The previous prime is 265160909851. The next prime is 265160909869. The reversal of 265160909857 is 758909061562.

265160909857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256644573201 + 8516336656 = 506601^2 + 92284^2 .

It is a cyclic number.

It is not a de Polignac number, because 265160909857 - 2¹⁹ = 265160385569 is a prime.

It is not a weakly prime, because it can be changed into another prime (265160909851) 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, 132580454928 + 132580454929.

It is an arithmetic number, because the mean of its divisors is an integer number (132580454929).

Almost surely, 2^265160909857 is an apocalyptic number.

It is an amenable number.

265160909857 is a deficient number, since it is larger than the sum of its proper divisors (1).

265160909857 is an equidigital number, since it uses as much as digits as its factorization.

265160909857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 265160909857 in words is "two hundred sixty-five billion, one hundred sixty million, nine hundred nine thousand, eight hundred fifty-seven".