11305216620 has 108 divisors (see below), whose sum is σ = 34865943840. Its totient is φ = 2965127040.

The previous prime is 11305216609. The next prime is 11305216621. The reversal of 11305216620 is 2661250311.

11305216620 is a `hidden beast` number, since 1 + 1 + 30 + 5 + 2 + 1 + 6 + 620 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11305216621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 661341 + ... + 678219.

Almost surely, 2^11305216620 is an apocalyptic number.

11305216620 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 11305216620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17432971920).

11305216620 is an abundant number, since it is smaller than the sum of its proper divisors (23560727220).

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

11305216620 is a wasteful number, since it uses less digits than its factorization.

11305216620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17016 (or 16950 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 11305216620 its reverse (2661250311), we get a palindrome (13966466931).

The spelling of 11305216620 in words is "eleven billion, three hundred five million, two hundred sixteen thousand, six hundred twenty".