266067360755641 has 2 divisors, whose sum is σ = 266067360755642. Its totient is φ = 266067360755640.

The previous prime is 266067360755633. The next prime is 266067360755717. The reversal of 266067360755641 is 146557063760662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261668152345600 + 4399208410041 = 16176160^2 + 2097429^2 .

It is a cyclic number.

It is not a de Polignac number, because 266067360755641 - 2³ = 266067360755633 is a prime.

It is not a weakly prime, because it can be changed into another prime (266067360755041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133033680377820 + 133033680377821.

It is an arithmetic number, because the mean of its divisors is an integer number (133033680377821).

Almost surely, 2^{266067360755641} is an apocalyptic number.

It is an amenable number.

266067360755641 is a deficient number, since it is larger than the sum of its proper divisors (1).

266067360755641 is an equidigital number, since it uses as much as digits as its factorization.

266067360755641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 228614400, while the sum is 64.

The spelling of 266067360755641 in words is "two hundred sixty-six trillion, sixty-seven billion, three hundred sixty million, seven hundred fifty-five thousand, six hundred forty-one".