1266602063 has 2 divisors, whose sum is σ = 1266602064. Its totient is φ = 1266602062.

The previous prime is 1266602039. The next prime is 1266602081. The reversal of 1266602063 is 3602066621.

It is a strong prime.

It is an emirp because it is prime and its reverse (3602066621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1266602063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266602033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633301031 + 633301032.

It is an arithmetic number, because the mean of its divisors is an integer number (633301032).

Almost surely, 2^1266602063 is an apocalyptic number.

1266602063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266602063 is an equidigital number, since it uses as much as digits as its factorization.

1266602063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1266602063 is about 35589.3532253678. The cubic root of 1266602063 is about 1081.9654604409.

Adding to 1266602063 its reverse (3602066621), we get a palindrome (4868668684).

The spelling of 1266602063 in words is "one billion, two hundred sixty-six million, six hundred two thousand, sixty-three".