11636144220 has 24 divisors (see below), whose sum is σ = 32581203984. Its totient is φ = 3102971776.

The previous prime is 11636144213. The next prime is 11636144227. The reversal of 11636144220 is 2244163611.

11636144220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11636144213) and next prime (11636144227).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11636144227) by changing a digit.

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, 96967809 + ... + 96967928.

It is an arithmetic number, because the mean of its divisors is an integer number (1357550166).

Almost surely, 2^11636144220 is an apocalyptic number.

11636144220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11636144220 is an abundant number, since it is smaller than the sum of its proper divisors (20945059764).

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

11636144220 is a wasteful number, since it uses less digits than its factorization.

11636144220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193935749 (or 193935747 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 11636144220 in words is "eleven billion, six hundred thirty-six million, one hundred forty-four thousand, two hundred twenty".