11881541216 has 24 divisors (see below), whose sum is σ = 23935782024. Its totient is φ = 5802612480.

The previous prime is 11881541209. The next prime is 11881541239. The reversal of 11881541216 is 61214518811.

It is a self number, because there is not a number n which added to its sum of digits gives 11881541216.

It is a congruent number.

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, 4316045 + ... + 4318796.

It is an arithmetic number, because the mean of its divisors is an integer number (997324251).

Almost surely, 2^11881541216 is an apocalyptic number.

11881541216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11881541216 is an abundant number, since it is smaller than the sum of its proper divisors (12054240808).

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

11881541216 is an equidigital number, since it uses as much as digits as its factorization.

11881541216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634894 (or 8634886 counting only the distinct ones).

The product of its digits is 15360, while the sum is 38.

The spelling of 11881541216 in words is "eleven billion, eight hundred eighty-one million, five hundred forty-one thousand, two hundred sixteen".