6623005500 has 240 divisors, whose sum is σ = 22356734400. Its totient is φ = 1704931200.

The previous prime is 6623005489. The next prime is 6623005507. The reversal of 6623005500 is 55003266.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623005507) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1171681 + ... + 1177319.

It is an arithmetic number, because the mean of its divisors is an integer number (93153060).

Almost surely, 2^6623005500 is an apocalyptic number.

6623005500 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 6623005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11178367200).

6623005500 is an abundant number, since it is smaller than the sum of its proper divisors (15733728900).

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

6623005500 is a wasteful number, since it uses less digits than its factorization.

6623005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699 (or 5678 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 6623005500 is about 81381.8499421093. The cubic root of 6623005500 is about 1877.9543824214.

Adding to 6623005500 its reverse (55003266), we get a palindrome (6678008766).

The spelling of 6623005500 in words is "six billion, six hundred twenty-three million, five thousand, five hundred".