680104080500 has 108 divisors (see below), whose sum is σ = 1608960969252. Its totient is φ = 251026838400.

The previous prime is 680104080473. The next prime is 680104080503. The reversal of 680104080500 is 5080401086.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 18 ways, for example, as 323310508816 + 356793571684 = 568604^2 + 597322^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680104080503) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 239725082 + ... + 239727918.

Almost surely, 2^680104080500 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 680104080500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804480484626).

680104080500 is an abundant number, since it is smaller than the sum of its proper divisors (928856888752).

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

680104080500 is an equidigital number, since it uses as much as digits as its factorization.

680104080500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719 (or 2857 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 680104080500 its reverse (5080401086), we get a palindrome (685184481586).

The spelling of 680104080500 in words is "six hundred eighty billion, one hundred four million, eighty thousand, five hundred".