805020660480 has 288 divisors, whose sum is σ = 2665289007360. Its totient is φ = 206833500160.

The previous prime is 805020660467. The next prime is 805020660481. The reversal of 805020660480 is 84066020508.

It is not an unprimeable number, because it can be changed into a prime (805020660481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54670399 + ... + 54685121.

It is an arithmetic number, because the mean of its divisors is an integer number (9254475720).

Almost surely, 2^805020660480 is an apocalyptic number.

805020660480 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 805020660480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332644503680).

805020660480 is an abundant number, since it is smaller than the sum of its proper divisors (1860268346880).

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

805020660480 is a wasteful number, since it uses less digits than its factorization.

805020660480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15267 (or 15253 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

Adding to 805020660480 its reverse (84066020508), we get a palindrome (889086680988).

The spelling of 805020660480 in words is "eight hundred five billion, twenty million, six hundred sixty thousand, four hundred eighty".