25788666863120 has 160 divisors (see below), whose sum is σ = 69226028179200. Its totient is φ = 8751413403648.

The previous prime is 25788666863117. The next prime is 25788666863161. The reversal of 25788666863120 is 2136866688752.

It is a super-2 number, since 2×25788666863120² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67459076 + ... + 67840284.

It is an arithmetic number, because the mean of its divisors is an integer number (432662676120).

Almost surely, 2^{25788666863120} is an apocalyptic number.

25788666863120 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 25788666863120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34613014089600).

25788666863120 is an abundant number, since it is smaller than the sum of its proper divisors (43437361316080).

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

25788666863120 is a wasteful number, since it uses less digits than its factorization.

25788666863120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382465 (or 382459 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 68.

The spelling of 25788666863120 in words is "twenty-five trillion, seven hundred eighty-eight billion, six hundred sixty-six million, eight hundred sixty-three thousand, one hundred twenty".