266102771887 has 2 divisors, whose sum is σ = 266102771888. Its totient is φ = 266102771886.

The previous prime is 266102771849. The next prime is 266102771911. The reversal of 266102771887 is 788177201662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266102771887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266102771287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133051385943 + 133051385944.

It is an arithmetic number, because the mean of its divisors is an integer number (133051385944).

Almost surely, 2^266102771887 is an apocalyptic number.

266102771887 is a deficient number, since it is larger than the sum of its proper divisors (1).

266102771887 is an equidigital number, since it uses as much as digits as its factorization.

266102771887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 266102771887 in words is "two hundred sixty-six billion, one hundred two million, seven hundred seventy-one thousand, eight hundred eighty-seven".