12012740083600 has 45 divisors (see below), whose sum is σ = 28860774590227. Its totient is φ = 4805068305920.

The previous prime is 12012740083579. The next prime is 12012740083637. The reversal of 12012740083600 is 638004721021.

The square root of 12012740083600 is 3465940.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5872731850384 + 6140008233216 = 2423372^2 + 2477904^2 .

It is a super-2 number, since 2×12012740083600² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 69232152 + ... + 69405448.

Almost surely, 2^{12012740083600} is an apocalyptic number.

12012740083600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012740083600 is the 3465940-th square number.

It is an amenable number.

12012740083600 is an abundant number, since it is smaller than the sum of its proper divisors (16848034506627).

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

12012740083600 is an frugal number, since it uses more digits than its factorization.

12012740083600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346612 (or 173304 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 12012740083600 in words is "twelve trillion, twelve billion, seven hundred forty million, eighty-three thousand, six hundred".