1326544065625 has 12 divisors (see below), whose sum is σ = 1658073962412. Its totient is φ = 1061235250000.

The previous prime is 1326544065611. The next prime is 1326544065701. The reversal of 1326544065625 is 5265604456231.

It can be written as a sum of positive squares in 6 ways, for example, as 809778615129 + 516765450496 = 899877^2 + 718864^2 .

It is not a de Polignac number, because 1326544065625 - 2⁵ = 1326544065593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212243926 + ... + 212250175.

It is an arithmetic number, because the mean of its divisors is an integer number (138172830201).

Almost surely, 2^{1326544065625} is an apocalyptic number.

It is an amenable number.

1326544065625 is a deficient number, since it is larger than the sum of its proper divisors (331529896787).

1326544065625 is an frugal number, since it uses more digits than its factorization.

1326544065625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424494126 (or 424494106 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 1326544065625 in words is "one trillion, three hundred twenty-six billion, five hundred forty-four million, sixty-five thousand, six hundred twenty-five".