266041014664441 has 2 divisors, whose sum is σ = 266041014664442. Its totient is φ = 266041014664440.

The previous prime is 266041014664291. The next prime is 266041014664573. The reversal of 266041014664441 is 144466410140662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183379805568400 + 82661209096041 = 13541780^2 + 9091821^2 .

It is a cyclic number.

It is not a de Polignac number, because 266041014664441 - 2¹⁵ = 266041014631673 is a prime.

It is a super-2 number, since 2×266041014664441² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (266041014664741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133020507332220 + 133020507332221.

It is an arithmetic number, because the mean of its divisors is an integer number (133020507332221).

Almost surely, 2^{266041014664441} is an apocalyptic number.

It is an amenable number.

266041014664441 is a deficient number, since it is larger than the sum of its proper divisors (1).

266041014664441 is an equidigital number, since it uses as much as digits as its factorization.

266041014664441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2654208, while the sum is 49.

The spelling of 266041014664441 in words is "two hundred sixty-six trillion, forty-one billion, fourteen million, six hundred sixty-four thousand, four hundred forty-one".