805360800080 has 80 divisors (see below), whose sum is σ = 1961140014720. Its totient is φ = 306992361984.

The previous prime is 805360799993. The next prime is 805360800091. The reversal of 805360800080 is 80008063508.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 318602 + ... + 1308521.

It is an arithmetic number, because the mean of its divisors is an integer number (24514250184).

Almost surely, 2^805360800080 is an apocalyptic number.

805360800080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

805360800080 is an abundant number, since it is smaller than the sum of its proper divisors (1155779214640).

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

805360800080 is a wasteful number, since it uses less digits than its factorization.

805360800080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627428 (or 1627422 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

Adding to 805360800080 its reverse (80008063508), we get a palindrome (885368863588).

The spelling of 805360800080 in words is "eight hundred five billion, three hundred sixty million, eight hundred thousand, eighty".