11316516820 has 96 divisors (see below), whose sum is σ = 28948631040. Its totient is φ = 3627417600.

The previous prime is 11316516817. The next prime is 11316516847. The reversal of 11316516820 is 2861561311.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 343636 + ... + 375124.

It is an arithmetic number, because the mean of its divisors is an integer number (301548240).

Almost surely, 2^11316516820 is an apocalyptic number.

11316516820 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 11316516820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14474315520).

11316516820 is an abundant number, since it is smaller than the sum of its proper divisors (17632114220).

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

11316516820 is a wasteful number, since it uses less digits than its factorization.

11316516820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31673 (or 31671 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 11316516820 in words is "eleven billion, three hundred sixteen million, five hundred sixteen thousand, eight hundred twenty".