265769955761 has 2 divisors, whose sum is σ = 265769955762. Its totient is φ = 265769955760.

The previous prime is 265769955707. The next prime is 265769955793. The reversal of 265769955761 is 167559967562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259406862400 + 6363093361 = 509320^2 + 79769^2 .

It is a cyclic number.

It is not a de Polignac number, because 265769955761 - 2¹⁴ = 265769939377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265769955691 and 265769955700.

It is not a weakly prime, because it can be changed into another prime (265769955701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132884977880 + 132884977881.

It is an arithmetic number, because the mean of its divisors is an integer number (132884977881).

Almost surely, 2^265769955761 is an apocalyptic number.

It is an amenable number.

265769955761 is a deficient number, since it is larger than the sum of its proper divisors (1).

265769955761 is an equidigital number, since it uses as much as digits as its factorization.

265769955761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214326000, while the sum is 68.

The spelling of 265769955761 in words is "two hundred sixty-five billion, seven hundred sixty-nine million, nine hundred fifty-five thousand, seven hundred sixty-one".