8266841856 has 540 divisors, whose sum is σ = 30595957392. Its totient is φ = 2173796352.

The previous prime is 8266841773. The next prime is 8266841867. The reversal of 8266841856 is 6581486628.

It is a super-2 number, since 2×8266841856² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 24530520 + ... + 24530856.

Almost surely, 2^8266841856 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 8266841856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15297978696).

8266841856 is an abundant number, since it is smaller than the sum of its proper divisors (22329115536).

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

8266841856 is a wasteful number, since it uses less digits than its factorization.

8266841856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 362 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 8266841856 is about 90922.1747210217. The cubic root of 8266841856 is about 2021.9940652645.

The spelling of 8266841856 in words is "eight billion, two hundred sixty-six million, eight hundred forty-one thousand, eight hundred fifty-six".