6620383560 has 256 divisors, whose sum is σ = 24665702400. Its totient is φ = 1387238400.

The previous prime is 6620383537. The next prime is 6620383571. The reversal of 6620383560 is 653830266.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 488070 + ... + 501450.

It is an arithmetic number, because the mean of its divisors is an integer number (96350400).

Almost surely, 2^6620383560 is an apocalyptic number.

6620383560 is a gapful number since it is divisible by the number (60) 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 6620383560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12332851200).

6620383560 is an abundant number, since it is smaller than the sum of its proper divisors (18045318840).

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

6620383560 is a wasteful number, since it uses less digits than its factorization.

6620383560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13452 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 6620383560 is about 81365.7394730731. The cubic root of 6620383560 is about 1877.7065325282.

The spelling of 6620383560 in words is "six billion, six hundred twenty million, three hundred eighty-three thousand, five hundred sixty".