11547431016 has 128 divisors (see below), whose sum is σ = 33434674560. Its totient is φ = 3284582400.

The previous prime is 11547431009. The next prime is 11547431041. The reversal of 11547431016 is 61013474511.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1778496 + ... + 1784976.

It is an arithmetic number, because the mean of its divisors is an integer number (261208395).

Almost surely, 2^11547431016 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 11547431016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16717337280).

11547431016 is an abundant number, since it is smaller than the sum of its proper divisors (21887243544).

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

11547431016 is a wasteful number, since it uses less digits than its factorization.

11547431016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915 (or 6911 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 11547431016 in words is "eleven billion, five hundred forty-seven million, four hundred thirty-one thousand, sixteen".