80856517620576 has 384 divisors, whose sum is σ = 224880669619200. Its totient is φ = 25386740121600.

The previous prime is 80856517620499. The next prime is 80856517620617. The reversal of 80856517620576 is 67502671565808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94128658035 + ... + 94128658893.

It is an arithmetic number, because the mean of its divisors is an integer number (585626743800).

Almost surely, 2^{80856517620576} 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 80856517620576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112440334809600).

80856517620576 is an abundant number, since it is smaller than the sum of its proper divisors (144024151998624).

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

80856517620576 is a wasteful number, since it uses less digits than its factorization.

80856517620576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 66.

The spelling of 80856517620576 in words is "eighty trillion, eight hundred fifty-six billion, five hundred seventeen million, six hundred twenty thousand, five hundred seventy-six".