8199520859616 has 384 divisors, whose sum is σ = 23402341670400. Its totient is φ = 2504242298880.

The previous prime is 8199520859587. The next prime is 8199520859627. The reversal of 8199520859616 is 6169580259918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4843189266 + ... + 4843190958.

It is an arithmetic number, because the mean of its divisors is an integer number (60943598100).

Almost surely, 2^{8199520859616} 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 8199520859616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11701170835200).

8199520859616 is an abundant number, since it is smaller than the sum of its proper divisors (15202820810784).

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

8199520859616 is a wasteful number, since it uses less digits than its factorization.

8199520859616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242 (or 2234 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 69.

The spelling of 8199520859616 in words is "eight trillion, one hundred ninety-nine billion, five hundred twenty million, eight hundred fifty-nine thousand, six hundred sixteen".