6570157856 has 48 divisors (see below), whose sum is σ = 13375756800. Its totient is φ = 3173514240.

The previous prime is 6570157837. The next prime is 6570157859. The reversal of 6570157856 is 6587510756.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6570157859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588680 + ... + 599736.

It is an arithmetic number, because the mean of its divisors is an integer number (278661600).

Almost surely, 2^6570157856 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 6570157856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6687878400).

6570157856 is an abundant number, since it is smaller than the sum of its proper divisors (6805598944).

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

6570157856 is a wasteful number, since it uses less digits than its factorization.

6570157856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11697 (or 11689 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 50.

The square root of 6570157856 is about 81056.5102629024. The cubic root of 6570157856 is about 1872.9460512661.

The spelling of 6570157856 in words is "six billion, five hundred seventy million, one hundred fifty-seven thousand, eight hundred fifty-six".