10991374706 has 16 divisors (see below), whose sum is σ = 17831510424. Its totient is φ = 5051167104.

The previous prime is 10991374703. The next prime is 10991374727. The reversal of 10991374706 is 60747319901.

It can be written as a sum of positive squares in 4 ways, for example, as 6519109081 + 4472265625 = 80741^2 + 66875^2 .

It is not an unprimeable number, because it can be changed into a prime (10991374703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901121 + ... + 913236.

Almost surely, 2^10991374706 is an apocalyptic number.

10991374706 is a deficient number, since it is larger than the sum of its proper divisors (6840135718).

10991374706 is a wasteful number, since it uses less digits than its factorization.

10991374706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814605.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 10991374706 in words is "ten billion, nine hundred ninety-one million, three hundred seventy-four thousand, seven hundred six".