808240165504 has 64 divisors (see below), whose sum is σ = 1638228160800. Its totient is φ = 397083479040.

The previous prime is 808240165487. The next prime is 808240165531. The reversal of 808240165504 is 405561042808.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16748899 + ... + 16797085.

Almost surely, 2^808240165504 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 808240165504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819114080400).

808240165504 is an abundant number, since it is smaller than the sum of its proper divisors (829987995296).

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

808240165504 is a wasteful number, since it uses less digits than its factorization.

808240165504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50481 (or 50469 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 808240165504 in words is "eight hundred eight billion, two hundred forty million, one hundred sixty-five thousand, five hundred four".