11045396691 has 36 divisors (see below), whose sum is σ = 18570497400. Its totient is φ = 6307838208.

The previous prime is 11045396653. The next prime is 11045396729. The reversal of 11045396691 is 19669354011.

11045396691 is a `hidden beast` number, since 1 + 104 + 539 + 6 + 6 + 9 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (11045396653) and next prime (11045396729).

It is not a de Polignac number, because 11045396691 - 2¹⁰ = 11045395667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11045396891) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 826420 + ... + 839678.

It is an arithmetic number, because the mean of its divisors is an integer number (515847150).

Almost surely, 2^11045396691 is an apocalyptic number.

11045396691 is a deficient number, since it is larger than the sum of its proper divisors (7525100709).

11045396691 is a wasteful number, since it uses less digits than its factorization.

11045396691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15168 (or 15158 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 11045396691 in words is "eleven billion, forty-five million, three hundred ninety-six thousand, six hundred ninety-one".