8665665801048 has 256 divisors, whose sum is σ = 24576108480000. Its totient is φ = 2863998902016.

The previous prime is 8665665801019. The next prime is 8665665801053. The reversal of 8665665801048 is 8401085665668.

8665665801048 is a `hidden beast` number, since 8 + 6 + 6 + 5 + 6 + 6 + 580 + 1 + 0 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2317640763 + ... + 2317644501.

It is an arithmetic number, because the mean of its divisors is an integer number (96000423750).

Almost surely, 2^{8665665801048} 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 8665665801048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12288054240000).

8665665801048 is an abundant number, since it is smaller than the sum of its proper divisors (15910442678952).

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

8665665801048 is a wasteful number, since it uses less digits than its factorization.

8665665801048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858 (or 4836 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 63.

The spelling of 8665665801048 in words is "eight trillion, six hundred sixty-five billion, six hundred sixty-five million, eight hundred one thousand, forty-eight".