12204805536 has 216 divisors, whose sum is σ = 44044850304. Its totient is φ = 3170039040.

The previous prime is 12204805531. The next prime is 12204805579. The reversal of 12204805536 is 63550840221.

12204805536 is a `hidden beast` number, since 1 + 2 + 20 + 4 + 80 + 553 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12204805536.

It is not an unprimeable number, because it can be changed into a prime (12204805531) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115921 + ... + 194543.

It is an arithmetic number, because the mean of its divisors is an integer number (203911344).

Almost surely, 2^12204805536 is an apocalyptic number.

12204805536 is a gapful number since it is divisible by the number (16) 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 12204805536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22022425152).

12204805536 is an abundant number, since it is smaller than the sum of its proper divisors (31840044768).

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

12204805536 is a wasteful number, since it uses less digits than its factorization.

12204805536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78664 (or 78646 counting only the distinct ones).

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

The spelling of 12204805536 in words is "twelve billion, two hundred four million, eight hundred five thousand, five hundred thirty-six".