16859121032196 has 81 divisors (see below), whose sum is σ = 43683497683189. Its totient is φ = 5482312507200.

The previous prime is 16859121032189. The next prime is 16859121032231. The reversal of 16859121032196 is 69123012195861.

The square root of 16859121032196 is 4105986.

It is a perfect power (a square), and thus also a powerful number.

16859121032196 is a `hidden beast` number, since 1 + 6 + 8 + 591 + 2 + 1 + 0 + 32 + 19 + 6 = 666.

16859121032196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 812366926596 + 16046754105600 = 901314^2 + 4005840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1010064211 + ... + 1010080901.

Almost surely, 2^{16859121032196} is an apocalyptic number.

16859121032196 is the 4105986-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16859121032196

16859121032196 is an abundant number, since it is smaller than the sum of its proper divisors (26824376650993).

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

16859121032196 is an frugal number, since it uses more digits than its factorization.

16859121032196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33474 (or 16737 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 16859121032196 in words is "sixteen trillion, eight hundred fifty-nine billion, one hundred twenty-one million, thirty-two thousand, one hundred ninety-six".