266011853 has 2 divisors, whose sum is σ = 266011854. Its totient is φ = 266011852.

The previous prime is 266011819. The next prime is 266011861. The reversal of 266011853 is 358110662.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262375204 + 3636649 = 16198^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 266011853 - 2¹² = 266007757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266011553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133005926 + 133005927.

It is an arithmetic number, because the mean of its divisors is an integer number (133005927).

Almost surely, 2^266011853 is an apocalyptic number.

It is an amenable number.

266011853 is a deficient number, since it is larger than the sum of its proper divisors (1).

266011853 is an equidigital number, since it uses as much as digits as its factorization.

266011853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 266011853 is about 16309.8698032817. The cubic root of 266011853 is about 643.1323115450.

The spelling of 266011853 in words is "two hundred sixty-six million, eleven thousand, eight hundred fifty-three".