25865726160 has 160 divisors (see below), whose sum is σ = 83109502080. Its totient is φ = 6649288704.

The previous prime is 25865726141. The next prime is 25865726167. The reversal of 25865726160 is 6162756852.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25865726167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 954559 + ... + 981281.

It is an arithmetic number, because the mean of its divisors is an integer number (519434388).

Almost surely, 2^25865726160 is an apocalyptic number.

25865726160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25865726160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41554751040).

25865726160 is an abundant number, since it is smaller than the sum of its proper divisors (57243775920).

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

25865726160 is a wasteful number, since it uses less digits than its factorization.

25865726160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26885 (or 26879 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 25865726160 in words is "twenty-five billion, eight hundred sixty-five million, seven hundred twenty-six thousand, one hundred sixty".