16071812856 has 512 divisors, whose sum is σ = 53747712000. Its totient is φ = 4398451200.

The previous prime is 16071812849. The next prime is 16071812857. The reversal of 16071812856 is 65821817061.

16071812856 is a `hidden beast` number, since 1 + 607 + 18 + 1 + 28 + 5 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16071812857) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 89786575 + ... + 89786753.

It is an arithmetic number, because the mean of its divisors is an integer number (104976000).

Almost surely, 2^16071812856 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 16071812856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26873856000).

16071812856 is an abundant number, since it is smaller than the sum of its proper divisors (37675899144).

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

16071812856 is a wasteful number, since it uses less digits than its factorization.

16071812856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 16071812856 in words is "sixteen billion, seventy-one million, eight hundred twelve thousand, eight hundred fifty-six".