80065820800 has 192 divisors, whose sum is σ = 226282838400. Its totient is φ = 27422023680.

The previous prime is 80065820749. The next prime is 80065820827. The reversal of 80065820800 is 802856008.

It is a self number, because there is not a number n which added to its sum of digits gives 80065820800.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39266181 + ... + 39268219.

It is an arithmetic number, because the mean of its divisors is an integer number (1178556450).

Almost surely, 2^80065820800 is an apocalyptic number.

80065820800 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 80065820800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113141419200).

80065820800 is an abundant number, since it is smaller than the sum of its proper divisors (146217017600).

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

80065820800 is a wasteful number, since it uses less digits than its factorization.

80065820800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823 (or 3806 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 80065820800 in words is "eighty billion, sixty-five million, eight hundred twenty thousand, eight hundred".