8655229440 has 960 divisors, whose sum is σ = 36677152512. Its totient is φ = 1857945600.

The previous prime is 8655229433. The next prime is 8655229469. The reversal of 8655229440 is 449225568.

8655229440 is a `hidden beast` number, since 8 + 6 + 552 + 2 + 94 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

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

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, 121904605 + ... + 121904675.

Almost surely, 2^8655229440 is an apocalyptic number.

8655229440 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 8655229440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18338576256).

8655229440 is an abundant number, since it is smaller than the sum of its proper divisors (28021923072).

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

8655229440 is a wasteful number, since it uses less digits than its factorization.

8655229440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 8655229440 is about 93033.4855844926. The cubic root of 8655229440 is about 2053.1760753611.

The spelling of 8655229440 in words is "eight billion, six hundred fifty-five million, two hundred twenty-nine thousand, four hundred forty".