10999268866 has 4 divisors (see below), whose sum is σ = 16498903302. Its totient is φ = 5499634432.

The previous prime is 10999268837. The next prime is 10999268867. The reversal of 10999268866 is 66886299901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6893150625 + 4106118241 = 83025^2 + 64079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10999268798 and 10999268807.

It is not an unprimeable number, because it can be changed into a prime (10999268867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2749817215 + ... + 2749817218.

Almost surely, 2^10999268866 is an apocalyptic number.

10999268866 is a deficient number, since it is larger than the sum of its proper divisors (5499634436).

10999268866 is an equidigital number, since it uses as much as digits as its factorization.

10999268866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499634435.

The product of its (nonzero) digits is 20155392, while the sum is 64.

The spelling of 10999268866 in words is "ten billion, nine hundred ninety-nine million, two hundred sixty-eight thousand, eight hundred sixty-six".