8855421120 has 672 divisors, whose sum is σ = 39160094400. Its totient is φ = 1867235328.

The previous prime is 8855421119. The next prime is 8855421149. The reversal of 8855421120 is 211245588.

8855421120 is a `hidden beast` number, since 8 + 85 + 542 + 11 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5502876 + ... + 5504484.

It is an arithmetic number, because the mean of its divisors is an integer number (58273950).

Almost surely, 2^8855421120 is an apocalyptic number.

8855421120 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 8855421120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19580047200).

8855421120 is an abundant number, since it is smaller than the sum of its proper divisors (30304673280).

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

8855421120 is a wasteful number, since it uses less digits than its factorization.

8855421120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 8855421120 is about 94103.2471278223. The cubic root of 8855421120 is about 2068.8852641147.

The spelling of 8855421120 in words is "eight billion, eight hundred fifty-five million, four hundred twenty-one thousand, one hundred twenty".