6563166266 has 32 divisors (see below), whose sum is σ = 10245312000. Its totient is φ = 3150875520.

The previous prime is 6563166263. The next prime is 6563166341. The reversal of 6563166266 is 6626613656.

It is a self number, because there is not a number n which added to its sum of digits gives 6563166266.

It is not an unprimeable number, because it can be changed into a prime (6563166263) 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 in 15 ways as a sum of consecutive naturals, for example, 2259371 + ... + 2262273.

It is an arithmetic number, because the mean of its divisors is an integer number (320166000).

Almost surely, 2^6563166266 is an apocalyptic number.

6563166266 is a deficient number, since it is larger than the sum of its proper divisors (3682145734).

6563166266 is a wasteful number, since it uses less digits than its factorization.

6563166266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374.

The product of its digits is 1399680, while the sum is 47.

The square root of 6563166266 is about 81013.3709087580. The cubic root of 6563166266 is about 1872.2814544199.

The spelling of 6563166266 in words is "six billion, five hundred sixty-three million, one hundred sixty-six thousand, two hundred sixty-six".