25960161856 has 42 divisors (see below), whose sum is σ = 53230191990. Its totient is φ = 12561338880.

The previous prime is 25960161853. The next prime is 25960161869. The reversal of 25960161856 is 65816106952.

It can be written as a sum of positive squares in only one way, i.e., 15871968256 + 10088193600 = 125984^2 + 100440^2 .

It is not an unprimeable number, because it can be changed into a prime (25960161853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149541 + ... + 272548.

Almost surely, 2^25960161856 is an apocalyptic number.

It is an amenable number.

25960161856 is an abundant number, since it is smaller than the sum of its proper divisors (27270030134).

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

25960161856 is an equidigital number, since it uses as much as digits as its factorization.

25960161856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422163 (or 422122 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 25960161856 in words is "twenty-five billion, nine hundred sixty million, one hundred sixty-one thousand, eight hundred fifty-six".