6623605320 has 192 divisors, whose sum is σ = 21322465920. Its totient is φ = 1642899456.

The previous prime is 6623605267. The next prime is 6623605337. The reversal of 6623605320 is 235063266.

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 47 ways as a sum of consecutive naturals, for example, 3777564 + ... + 3779316.

It is an arithmetic number, because the mean of its divisors is an integer number (111054510).

Almost surely, 2^6623605320 is an apocalyptic number.

6623605320 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 6623605320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10661232960).

6623605320 is an abundant number, since it is smaller than the sum of its proper divisors (14698860600).

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

6623605320 is a wasteful number, since it uses less digits than its factorization.

6623605320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 6623605320 is about 81385.5350784155. The cubic root of 6623605320 is about 1878.0110737324.

Adding to 6623605320 its reverse (235063266), we get a palindrome (6858668586).

The spelling of 6623605320 in words is "six billion, six hundred twenty-three million, six hundred five thousand, three hundred twenty".