12004033536 has 132 divisors (see below), whose sum is σ = 37812740784. Its totient is φ = 3637555200.

The previous prime is 12004033529. The next prime is 12004033537. The reversal of 12004033536 is 63533040021.

It is a happy number.

12004033536 is a `hidden beast` number, since 1 + 200 + 403 + 3 + 53 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (132).

It is a super-2 number, since 2×12004033536² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12004033537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42171 + ... + 160581.

Almost surely, 2^12004033536 is an apocalyptic number.

12004033536 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 12004033536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18906370392).

12004033536 is an abundant number, since it is smaller than the sum of its proper divisors (25808707248).

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

12004033536 is a wasteful number, since it uses less digits than its factorization.

12004033536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118448 (or 118427 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 12004033536 its reverse (63533040021), we get a palindrome (75537073557).

The spelling of 12004033536 in words is "twelve billion, four million, thirty-three thousand, five hundred thirty-six".