12065978544 has 40 divisors (see below), whose sum is σ = 31635683520. Its totient is φ = 3961962048.

The previous prime is 12065978543. The next prime is 12065978563. The reversal of 12065978544 is 44587956021.

It is not an unprimeable number, because it can be changed into a prime (12065978543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872714 + ... + 1879145.

It is an arithmetic number, because the mean of its divisors is an integer number (790892088).

Almost surely, 2^12065978544 is an apocalyptic number.

It is an amenable number.

12065978544 is an abundant number, since it is smaller than the sum of its proper divisors (19569704976).

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

12065978544 is a wasteful number, since it uses less digits than its factorization.

12065978544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751937 (or 3751931 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 12065978544 in words is "twelve billion, sixty-five million, nine hundred seventy-eight thousand, five hundred forty-four".