11081560266 has 320 divisors, whose sum is σ = 31580651520. Its totient is φ = 2832952320.

The previous prime is 11081560249. The next prime is 11081560283. The reversal of 11081560266 is 66206518011.

11081560266 is a `hidden beast` number, since 1 + 10 + 81 + 560 + 2 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (11081560249) and next prime (11081560283).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11081560266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 31392346 + ... + 31392698.

It is an arithmetic number, because the mean of its divisors is an integer number (98689536).

Almost surely, 2^11081560266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11081560266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15790325760).

11081560266 is an abundant number, since it is smaller than the sum of its proper divisors (20499091254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11081560266 is a wasteful number, since it uses less digits than its factorization.

11081560266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 11081560266 in words is "eleven billion, eighty-one million, five hundred sixty thousand, two hundred sixty-six".