1266034663 has 2 divisors, whose sum is σ = 1266034664. Its totient is φ = 1266034662.

The previous prime is 1266034621. The next prime is 1266034667. The reversal of 1266034663 is 3664306621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1266034663 - 2⁹ = 1266034151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266034667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633017331 + 633017332.

It is an arithmetic number, because the mean of its divisors is an integer number (633017332).

Almost surely, 2^1266034663 is an apocalyptic number.

1266034663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266034663 is an equidigital number, since it uses as much as digits as its factorization.

1266034663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 1266034663 is about 35581.3808472915. The cubic root of 1266034663 is about 1081.8038735427.

The spelling of 1266034663 in words is "one billion, two hundred sixty-six million, thirty-four thousand, six hundred sixty-three".