266425524643 has 2 divisors, whose sum is σ = 266425524644. Its totient is φ = 266425524642.

The previous prime is 266425524587. The next prime is 266425524667. The reversal of 266425524643 is 346425524662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266425524643 is a prime.

It is not a weakly prime, because it can be changed into another prime (266425924643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133212762321 + 133212762322.

It is an arithmetic number, because the mean of its divisors is an integer number (133212762322).

Almost surely, 2^266425524643 is an apocalyptic number.

266425524643 is a deficient number, since it is larger than the sum of its proper divisors (1).

266425524643 is an equidigital number, since it uses as much as digits as its factorization.

266425524643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8294400, while the sum is 49.

The spelling of 266425524643 in words is "two hundred sixty-six billion, four hundred twenty-five million, five hundred twenty-four thousand, six hundred forty-three".