8113855680 has 336 divisors, whose sum is σ = 32926593024. Its totient is φ = 1794631680.

The previous prime is 8113855667. The next prime is 8113855681. The reversal of 8113855680 is 865583118.

8113855680 is a `hidden beast` number, since 8 + 1 + 1 + 3 + 85 + 568 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (8113855681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 618469 + ... + 631451.

Almost surely, 2^8113855680 is an apocalyptic number.

8113855680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8113855680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16463296512).

8113855680 is an abundant number, since it is smaller than the sum of its proper divisors (24812737344).

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

8113855680 is a wasteful number, since it uses less digits than its factorization.

8113855680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13044 (or 13031 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The square root of 8113855680 is about 90076.9431097659. The cubic root of 8113855680 is about 2009.4433150571.

The spelling of 8113855680 in words is "eight billion, one hundred thirteen million, eight hundred fifty-five thousand, six hundred eighty".