6620322522 has 64 divisors (see below), whose sum is σ = 14774482944. Its totient is φ = 1960439040.

The previous prime is 6620322493. The next prime is 6620322539. The reversal of 6620322522 is 2252230266.

It is a self number, because there is not a number n which added to its sum of digits gives 6620322522.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2737858 + ... + 2740274.

It is an arithmetic number, because the mean of its divisors is an integer number (230851296).

Almost surely, 2^6620322522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6620322522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7387241472).

6620322522 is an abundant number, since it is smaller than the sum of its proper divisors (8154160422).

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

6620322522 is a wasteful number, since it uses less digits than its factorization.

6620322522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 6620322522 is about 81365.3643880490. The cubic root of 6620322522 is about 1877.7007618754.

Adding to 6620322522 its reverse (2252230266), we get a palindrome (8872552788).

The spelling of 6620322522 in words is "six billion, six hundred twenty million, three hundred twenty-two thousand, five hundred twenty-two".