11517943973356 has 24 divisors (see below), whose sum is σ = 20353698713600. Its totient is φ = 5702875794000.

The previous prime is 11517943973329. The next prime is 11517943973363. The reversal of 11517943973356 is 65337934971511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34120620 + ... + 34456531.

Almost surely, 2^{11517943973356} is an apocalyptic number.

It is an amenable number.

11517943973356 is a deficient number, since it is larger than the sum of its proper divisors (8835754740244).

11517943973356 is a wasteful number, since it uses less digits than its factorization.

11517943973356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68577565 (or 68577563 counting only the distinct ones).

The product of its digits is 64297800, while the sum is 64.

The spelling of 11517943973356 in words is "eleven trillion, five hundred seventeen billion, nine hundred forty-three million, nine hundred seventy-three thousand, three hundred fifty-six".