25889388803166 has 96 divisors (see below), whose sum is σ = 61391310382368. Its totient is φ = 7254754590720.

The previous prime is 25889388803147. The next prime is 25889388803171. The reversal of 25889388803166 is 66130888398852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42595486 + ... + 43199006.

It is an arithmetic number, because the mean of its divisors is an integer number (639492816483).

Almost surely, 2^{25889388803166} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25889388803166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30695655191184).

25889388803166 is an abundant number, since it is smaller than the sum of its proper divisors (35501921579202).

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

25889388803166 is a wasteful number, since it uses less digits than its factorization.

25889388803166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606346 (or 606339 counting only the distinct ones).

The product of its (nonzero) digits is 955514880, while the sum is 75.

The spelling of 25889388803166 in words is "twenty-five trillion, eight hundred eighty-nine billion, three hundred eighty-eight million, eight hundred three thousand, one hundred sixty-six".