12545302133605 has 16 divisors (see below), whose sum is σ = 15262166049840. Its totient is φ = 9897734504448.

The previous prime is 12545302133603. The next prime is 12545302133621. The reversal of 12545302133605 is 50633120354521.

It can be written as a sum of positive squares in 8 ways, for example, as 12335656356 + 12532966477249 = 111066^2 + 3540193^2 .

It is a cyclic number.

It is not a de Polignac number, because 12545302133605 - 2¹ = 12545302133603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545302133603) 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, 1762789 + ... + 5310181.

It is an arithmetic number, because the mean of its divisors is an integer number (953885378115).

Almost surely, 2^{12545302133605} is an apocalyptic number.

It is an amenable number.

12545302133605 is a deficient number, since it is larger than the sum of its proper divisors (2716863916235).

12545302133605 is an equidigital number, since it uses as much as digits as its factorization.

12545302133605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557160.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 12545302133605 in words is "twelve trillion, five hundred forty-five billion, three hundred two million, one hundred thirty-three thousand, six hundred five".