11956336220 has 24 divisors (see below), whose sum is σ = 25342967664. Its totient is φ = 4737837056.

The previous prime is 11956336219. The next prime is 11956336241. The reversal of 11956336220 is 2263365911.

11956336220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2791397 + ... + 2795676.

It is an arithmetic number, because the mean of its divisors is an integer number (1055956986).

Almost surely, 2^11956336220 is an apocalyptic number.

11956336220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11956336220 is an abundant number, since it is smaller than the sum of its proper divisors (13386631444).

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

11956336220 is a wasteful number, since it uses less digits than its factorization.

11956336220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587189 (or 5587187 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 11956336220 in words is "eleven billion, nine hundred fifty-six million, three hundred thirty-six thousand, two hundred twenty".