1266163471 has 2 divisors, whose sum is σ = 1266163472. Its totient is φ = 1266163470.

The previous prime is 1266163429. The next prime is 1266163489. The reversal of 1266163471 is 1743616621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1266163471 - 2⁷ = 1266163343 is a prime.

It is a super-3 number, since 3×1266163471³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1266163471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266163571) 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, 633081735 + 633081736.

It is an arithmetic number, because the mean of its divisors is an integer number (633081736).

Almost surely, 2^1266163471 is an apocalyptic number.

1266163471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266163471 is an equidigital number, since it uses as much as digits as its factorization.

1266163471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 1266163471 is about 35583.1908490512. The cubic root of 1266163471 is about 1081.8405603391.

The spelling of 1266163471 in words is "one billion, two hundred sixty-six million, one hundred sixty-three thousand, four hundred seventy-one".