825665595848740 has 96 divisors (see below), whose sum is σ = 1820505104046720. Its totient is φ = 314110385132544.

The previous prime is 825665595848707. The next prime is 825665595848759. The reversal of 825665595848740 is 47848595566528.

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, 1657790632 + ... + 1658288608.

It is an arithmetic number, because the mean of its divisors is an integer number (18963594833820).

Almost surely, 2^{825665595848740} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 825665595848740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910252552023360).

825665595848740 is an abundant number, since it is smaller than the sum of its proper divisors (994839508197980).

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

825665595848740 is a wasteful number, since it uses less digits than its factorization.

825665595848740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540749 (or 540747 counting only the distinct ones).

The product of its (nonzero) digits is 23224320000, while the sum is 82.

The spelling of 825665595848740 in words is "eight hundred twenty-five trillion, six hundred sixty-five billion, five hundred ninety-five million, eight hundred forty-eight thousand, seven hundred forty".