617204122080 has 384 divisors, whose sum is σ = 2395525321728. Its totient is φ = 130077868032.

The previous prime is 617204122057. The next prime is 617204122081. The reversal of 617204122080 is 80221402716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617204122081) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 41619627 + ... + 41634453.

It is an arithmetic number, because the mean of its divisors is an integer number (6238347192).

Almost surely, 2^617204122080 is an apocalyptic number.

617204122080 is a gapful number since it is divisible by the number (60) 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 617204122080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197762660864).

617204122080 is an abundant number, since it is smaller than the sum of its proper divisors (1778321199648).

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

617204122080 is a wasteful number, since it uses less digits than its factorization.

617204122080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15818 (or 15810 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

Adding to 617204122080 its reverse (80221402716), we get a palindrome (697425524796).

The spelling of 617204122080 in words is "six hundred seventeen billion, two hundred four million, one hundred twenty-two thousand, eighty".