12105605333804 has 24 divisors (see below), whose sum is σ = 21635765807040. Its totient is φ = 5923960530176.

The previous prime is 12105605333761. The next prime is 12105605333863. The reversal of 12105605333804 is 40833350650121.

It is a super-2 number, since 2×12105605333804² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23105012 + ... + 23623140.

It is an arithmetic number, because the mean of its divisors is an integer number (901490241960).

Almost surely, 2^{12105605333804} is an apocalyptic number.

It is an amenable number.

12105605333804 is a deficient number, since it is larger than the sum of its proper divisors (9530160473236).

12105605333804 is a wasteful number, since it uses less digits than its factorization.

12105605333804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642457 (or 642455 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

Adding to 12105605333804 its reverse (40833350650121), we get a palindrome (52938955983925).

The spelling of 12105605333804 in words is "twelve trillion, one hundred five billion, six hundred five million, three hundred thirty-three thousand, eight hundred four".