11547254816 has 48 divisors (see below), whose sum is σ = 23629584384. Its totient is φ = 5549854464.

The previous prime is 11547254809. The next prime is 11547254819. The reversal of 11547254816 is 61845274511.

It is not an unprimeable number, because it can be changed into a prime (11547254819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39521 + ... + 157023.

It is an arithmetic number, because the mean of its divisors is an integer number (492283008).

Almost surely, 2^11547254816 is an apocalyptic number.

11547254816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11547254816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11814792192).

11547254816 is an abundant number, since it is smaller than the sum of its proper divisors (12082329568).

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

11547254816 is a wasteful number, since it uses less digits than its factorization.

11547254816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117633 (or 117625 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The spelling of 11547254816 in words is "eleven billion, five hundred forty-seven million, two hundred fifty-four thousand, eight hundred sixteen".