266221755343 has 2 divisors, whose sum is σ = 266221755344. Its totient is φ = 266221755342.

The previous prime is 266221755337. The next prime is 266221755377. The reversal of 266221755343 is 343557122662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266221755343 - 2¹³ = 266221747151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266221755293 and 266221755302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266221755313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133110877671 + 133110877672.

It is an arithmetic number, because the mean of its divisors is an integer number (133110877672).

Almost surely, 2^266221755343 is an apocalyptic number.

266221755343 is a deficient number, since it is larger than the sum of its proper divisors (1).

266221755343 is an equidigital number, since it uses as much as digits as its factorization.

266221755343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 46.

The spelling of 266221755343 in words is "two hundred sixty-six billion, two hundred twenty-one million, seven hundred fifty-five thousand, three hundred forty-three".