6941555856 has 135 divisors (see below), whose sum is σ = 19952473177. Its totient is φ = 2252864640.

The previous prime is 6941555843. The next prime is 6941555857. The reversal of 6941555856 is 6585551496.

The square root of 6941555856 is 83316.

It is a perfect power (a square), and thus also a powerful number.

6941555856 is a `hidden beast` number, since 6 + 9 + 4 + 1 + 55 + 585 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5004147600 + 1937408256 = 70740^2 + 44016^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6941555857) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 52988911 + ... + 52989041.

Almost surely, 2^6941555856 is an apocalyptic number.

6941555856 is the 83316-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6941555856

6941555856 is an abundant number, since it is smaller than the sum of its proper divisors (13010917321).

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

6941555856 is a wasteful number, since it uses less digits than its factorization.

6941555856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 189 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 54.

The cubic root of 6941555856 is about 1907.5925055696.

The spelling of 6941555856 in words is "six billion, nine hundred forty-one million, five hundred fifty-five thousand, eight hundred fifty-six".