11550396581156 has 24 divisors (see below), whose sum is σ = 20643708024576. Its totient is φ = 5652199598720.

The previous prime is 11550396581117. The next prime is 11550396581177. The reversal of 11550396581156 is 65118569305511.

It is a super-3 number, since 3×11550396581156³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 8387441 + ... + 9666951.

It is an arithmetic number, because the mean of its divisors is an integer number (860154501024).

Almost surely, 2^{11550396581156} is an apocalyptic number.

It is an amenable number.

11550396581156 is a deficient number, since it is larger than the sum of its proper divisors (9093311443420).

11550396581156 is a wasteful number, since it uses less digits than its factorization.

11550396581156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327579 (or 1327577 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 56.

The spelling of 11550396581156 in words is "eleven trillion, five hundred fifty billion, three hundred ninety-six million, five hundred eighty-one thousand, one hundred fifty-six".