11547275916 has 96 divisors (see below), whose sum is σ = 31694987520. Its totient is φ = 3234124800.

The previous prime is 11547275903. The next prime is 11547275917. The reversal of 11547275916 is 61957274511.

It is not an unprimeable number, because it can be changed into a prime (11547275917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46680 + ... + 158976.

It is an arithmetic number, because the mean of its divisors is an integer number (330156120).

Almost surely, 2^11547275916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11547275916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15847493760).

11547275916 is an abundant number, since it is smaller than the sum of its proper divisors (20147711604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11547275916 is a wasteful number, since it uses less digits than its factorization.

11547275916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112375 (or 112373 counting only the distinct ones).

The product of its digits is 529200, while the sum is 48.

The spelling of 11547275916 in words is "eleven billion, five hundred forty-seven million, two hundred seventy-five thousand, nine hundred sixteen".