12180604065 has 16 divisors (see below), whose sum is σ = 22273104768. Its totient is φ = 5568276096.

The previous prime is 12180604061. The next prime is 12180604067. The reversal of 12180604065 is 56040608121.

It is not a de Polignac number, because 12180604065 - 2² = 12180604061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12180604061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58002772 + ... + 58002981.

It is an arithmetic number, because the mean of its divisors is an integer number (1392069048).

Almost surely, 2^12180604065 is an apocalyptic number.

12180604065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12180604065 is a deficient number, since it is larger than the sum of its proper divisors (10092500703).

12180604065 is a wasteful number, since it uses less digits than its factorization.

12180604065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116005768.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 12180604065 in words is "twelve billion, one hundred eighty million, six hundred four thousand, sixty-five".