805800960000 has 1400 divisors, whose sum is σ = 3158348161320. Its totient is φ = 204374016000.

The previous prime is 805800959993. The next prime is 805800960037. The reversal of 805800960000 is 69008508.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 99 ways as a sum of consecutive naturals, for example, 12026879967 + ... + 12026880033.

Almost surely, 2^805800960000 is an apocalyptic number.

805800960000 is a gapful number since it is divisible by the number (80) 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 805800960000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579174080660).

805800960000 is an abundant number, since it is smaller than the sum of its proper divisors (2352547201320).

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

805800960000 is an frugal number, since it uses more digits than its factorization.

805800960000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

Adding to 805800960000 its reverse (69008508), we get a palindrome (805869968508).

The spelling of 805800960000 in words is "eight hundred five billion, eight hundred million, nine hundred sixty thousand".