6622900000 has 144 divisors (see below), whose sum is σ = 16481320128. Its totient is φ = 2619360000.

The previous prime is 6622899971. The next prime is 6622900003. The reversal of 6622900000 is 92266.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (6622900003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10299679 + ... + 10300321.

It is an arithmetic number, because the mean of its divisors is an integer number (114453612).

Almost surely, 2^6622900000 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 6622900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8240660064).

6622900000 is an abundant number, since it is smaller than the sum of its proper divisors (9858420128).

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

6622900000 is an equidigital number, since it uses as much as digits as its factorization.

6622900000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 6622900000 is about 81381.2017606032. The cubic root of 6622900000 is about 1877.9444108539.

Adding to 6622900000 its reverse (92266), we get a palindrome (6622992266).

The spelling of 6622900000 in words is "six billion, six hundred twenty-two million, nine hundred thousand".