11520961156 has 12 divisors (see below), whose sum is σ = 20295204160. Its totient is φ = 5722331400.

The previous prime is 11520961121. The next prime is 11520961171. The reversal of 11520961156 is 65116902511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9536616 + ... + 9537823.

Almost surely, 2^11520961156 is an apocalyptic number.

It is an amenable number.

11520961156 is a deficient number, since it is larger than the sum of its proper divisors (8774243004).

11520961156 is a wasteful number, since it uses less digits than its factorization.

11520961156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19074594 (or 19074592 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 37.

The spelling of 11520961156 in words is "eleven billion, five hundred twenty million, nine hundred sixty-one thousand, one hundred fifty-six".