12018251560225 has 27 divisors (see below), whose sum is σ = 14938548328281. Its totient is φ = 9591485059200.

The previous prime is 12018251560163. The next prime is 12018251560243. The reversal of 12018251560225 is 52206515281021.

The square root of 12018251560225 is 3466735.

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 2713238190481 + 9305013369744 = 1647191^2 + 3050412^2 .

It is not a de Polignac number, because 12018251560225 - 2⁷ = 12018251560097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13641601785 + ... + 13641602665.

Almost surely, 2^{12018251560225} is an apocalyptic number.

12018251560225 is the 3466735-th square number.

12018251560225 is the 1733368-th centered octagonal number.

It is an amenable number.

12018251560225 is a deficient number, since it is larger than the sum of its proper divisors (2920296768056).

12018251560225 is an frugal number, since it uses more digits than its factorization.

12018251560225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 40.

The spelling of 12018251560225 in words is "twelve trillion, eighteen billion, two hundred fifty-one million, five hundred sixty thousand, two hundred twenty-five".