11816551300 has 108 divisors (see below), whose sum is σ = 27234881856. Its totient is φ = 4440867200.

The previous prime is 11816551291. The next prime is 11816551303. The reversal of 11816551300 is 315561811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11816551303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43927566 + ... + 43927834.

It is an arithmetic number, because the mean of its divisors is an integer number (252174832).

Almost surely, 2^11816551300 is an apocalyptic number.

11816551300 is a gapful number since it is divisible by the number (10) 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 11816551300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13617440928).

11816551300 is an abundant number, since it is smaller than the sum of its proper divisors (15418330556).

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

11816551300 is a wasteful number, since it uses less digits than its factorization.

11816551300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 11816551300 in words is "eleven billion, eight hundred sixteen million, five hundred fifty-one thousand, three hundred".