6622115500 has 384 divisors, whose sum is σ = 19760412672. Its totient is φ = 1872000000.

The previous prime is 6622115497. The next prime is 6622115501. The reversal of 6622115500 is 55112266.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (6622115501) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 50550435 + ... + 50550565.

It is an arithmetic number, because the mean of its divisors is an integer number (51459408).

Almost surely, 2^6622115500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622115500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9880206336).

6622115500 is an abundant number, since it is smaller than the sum of its proper divisors (13138297172).

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

6622115500 is a wasteful number, since it uses less digits than its factorization.

6622115500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6622115500 is about 81376.3817086997. The cubic root of 6622115500 is about 1877.8702587673.

Adding to 6622115500 its reverse (55112266), we get a palindrome (6677227766).

The spelling of 6622115500 in words is "six billion, six hundred twenty-two million, one hundred fifteen thousand, five hundred".