11155984317 has 12 divisors (see below), whose sum is σ = 16127117500. Its totient is φ = 7431360768.

The previous prime is 11155984309. The next prime is 11155984327. The reversal of 11155984317 is 71348955111.

11155984317 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 598 + 43 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3215570436 + 7940413881 = 56706^2 + 89109^2 .

It is not a de Polignac number, because 11155984317 - 2³ = 11155984309 is a prime.

It is a super-2 number, since 2×11155984317² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155984327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484978 + ... + 507459.

Almost surely, 2^11155984317 is an apocalyptic number.

It is an amenable number.

11155984317 is a deficient number, since it is larger than the sum of its proper divisors (4971133183).

11155984317 is a wasteful number, since it uses less digits than its factorization.

11155984317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993692 (or 993689 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The spelling of 11155984317 in words is "eleven billion, one hundred fifty-five million, nine hundred eighty-four thousand, three hundred seventeen".