265413610643101 has 2 divisors, whose sum is σ = 265413610643102. Its totient is φ = 265413610643100.

The previous prime is 265413610643017. The next prime is 265413610643189. The reversal of 265413610643101 is 101346016314562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265395019320601 + 18591322500 = 16290949^2 + 136350^2 .

It is a cyclic number.

It is not a de Polignac number, because 265413610643101 - 2²⁷ = 265413476425373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265413610643801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132706805321550 + 132706805321551.

It is an arithmetic number, because the mean of its divisors is an integer number (132706805321551).

Almost surely, 2^{265413610643101} is an apocalyptic number.

It is an amenable number.

265413610643101 is a deficient number, since it is larger than the sum of its proper divisors (1).

265413610643101 is an equidigital number, since it uses as much as digits as its factorization.

265413610643101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

Adding to 265413610643101 its reverse (101346016314562), we get a palindrome (366759626957663).

The spelling of 265413610643101 in words is "two hundred sixty-five trillion, four hundred thirteen billion, six hundred ten million, six hundred forty-three thousand, one hundred one".