16856527571136 has 560 divisors, whose sum is σ = 55093608583200. Its totient is φ = 5095725465600.

The previous prime is 16856527571131. The next prime is 16856527571153. The reversal of 16856527571136 is 63117572565861.

16856527571136 is a `hidden beast` number, since 1 + 6 + 8 + 5 + 6 + 5 + 27 + 571 + 1 + 36 = 666.

It is not an unprimeable number, because it can be changed into a prime (16856527571131) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3098054176 + ... + 3098059616.

Almost surely, 2^{16856527571136} is an apocalyptic number.

16856527571136 is a gapful number since it is divisible by the number (16) 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 16856527571136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27546804291600).

16856527571136 is an abundant number, since it is smaller than the sum of its proper divisors (38237081012064).

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

16856527571136 is an equidigital number, since it uses as much as digits as its factorization.

16856527571136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947 (or 5906 counting only the distinct ones).

The product of its digits is 63504000, while the sum is 63.

The spelling of 16856527571136 in words is "sixteen trillion, eight hundred fifty-six billion, five hundred twenty-seven million, five hundred seventy-one thousand, one hundred thirty-six".