25600130313161 has 4 divisors (see below), whose sum is σ = 25600209061524. Its totient is φ = 25600051564800.

The previous prime is 25600130313151. The next prime is 25600130313181. The reversal of 25600130313161 is 16131303100652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17365847545225 + 8234282767936 = 4167235^2 + 2869544^2 .

It is a cyclic number.

It is not a de Polignac number, because 25600130313161 - 2¹⁴ = 25600130296777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25600130313151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38884520 + ... + 39537401.

It is an arithmetic number, because the mean of its divisors is an integer number (6400052265381).

Almost surely, 2^{25600130313161} is an apocalyptic number.

It is an amenable number.

25600130313161 is a deficient number, since it is larger than the sum of its proper divisors (78748363).

25600130313161 is an equidigital number, since it uses as much as digits as its factorization.

25600130313161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78748362.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 25600130313161 in words is "twenty-five trillion, six hundred billion, one hundred thirty million, three hundred thirteen thousand, one hundred sixty-one".