1262116663 has 2 divisors, whose sum is σ = 1262116664. Its totient is φ = 1262116662.

The previous prime is 1262116643. The next prime is 1262116673. The reversal of 1262116663 is 3666112621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1262116663 - 2⁵ = 1262116631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262116633) 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, 631058331 + 631058332.

It is an arithmetic number, because the mean of its divisors is an integer number (631058332).

Almost surely, 2^1262116663 is an apocalyptic number.

1262116663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262116663 is an equidigital number, since it uses as much as digits as its factorization.

1262116663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 1262116663 is about 35526.2812999053. The cubic root of 1262116663 is about 1080.6867668422.

The spelling of 1262116663 in words is "one billion, two hundred sixty-two million, one hundred sixteen thousand, six hundred sixty-three".