856053016 has 128 divisors (see below), whose sum is σ = 2066117760. Its totient is φ = 323481600.

The previous prime is 856053013. The next prime is 856053047. The reversal of 856053016 is 610350658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856053013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1642836 + ... + 1643356.

It is an arithmetic number, because the mean of its divisors is an integer number (16141545).

Almost surely, 2^856053016 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 856053016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033058880).

856053016 is an abundant number, since it is smaller than the sum of its proper divisors (1210064744).

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

856053016 is a wasteful number, since it uses less digits than its factorization.

856053016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 856053016 is about 29258.3836874151. The cubic root of 856053016 is about 949.5114814268.

The spelling of 856053016 in words is "eight hundred fifty-six million, fifty-three thousand, sixteen".