4163705856 has 264 divisors, whose sum is σ = 12920172720. Its totient is φ = 1337720832.

The previous prime is 4163705851. The next prime is 4163705899. The reversal of 4163705856 is 6585073614.

4163705856 is a `hidden beast` number, since 4 + 1 + 63 + 7 + 0 + 585 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4163705851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7215840 + ... + 7216416.

Almost surely, 2^4163705856 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 4163705856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6460086360).

4163705856 is an abundant number, since it is smaller than the sum of its proper divisors (8756466864).

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

4163705856 is an equidigital number, since it uses as much as digits as its factorization.

4163705856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 4163705856 is about 64526.7840202811. The cubic root of 4163705856 is about 1608.7677331900.

The spelling of 4163705856 in words is "four billion, one hundred sixty-three million, seven hundred five thousand, eight hundred fifty-six".