12205543608 has 96 divisors (see below), whose sum is σ = 35237280000. Its totient is φ = 3805558848.

The previous prime is 12205543591. The next prime is 12205543621. The reversal of 12205543608 is 80634550221.

12205543608 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 5 + 5 + 43 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51603 + ... + 164541.

It is an arithmetic number, because the mean of its divisors is an integer number (367055000).

Almost surely, 2^12205543608 is an apocalyptic number.

12205543608 is a gapful number since it is divisible by the number (18) 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 12205543608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17618640000).

12205543608 is an abundant number, since it is smaller than the sum of its proper divisors (23031736392).

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

12205543608 is a wasteful number, since it uses less digits than its factorization.

12205543608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113049 (or 113042 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 12205543608 in words is "twelve billion, two hundred five million, five hundred forty-three thousand, six hundred eight".