12105555650332 has 48 divisors (see below), whose sum is σ = 21896093786112. Its totient is φ = 5850033503040.

The previous prime is 12105555650261. The next prime is 12105555650333. The reversal of 12105555650332 is 23305655550121.

It is a super-2 number, since 2×12105555650332² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105555650333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332707413 + ... + 332743795.

It is an arithmetic number, because the mean of its divisors is an integer number (456168620544).

Almost surely, 2^{12105555650332} is an apocalyptic number.

It is an amenable number.

12105555650332 is a deficient number, since it is larger than the sum of its proper divisors (9790538135780).

12105555650332 is a wasteful number, since it uses less digits than its factorization.

12105555650332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39778 (or 39776 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 12105555650332 in words is "twelve trillion, one hundred five billion, five hundred fifty-five million, six hundred fifty thousand, three hundred thirty-two".