6518422020 has 96 divisors (see below), whose sum is σ = 20026258560. Its totient is φ = 1571061760.

The previous prime is 6518421991. The next prime is 6518422021. The reversal of 6518422020 is 202248156.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (6518422021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85636 + ... + 142724.

It is an arithmetic number, because the mean of its divisors is an integer number (208606860).

Almost surely, 2^6518422020 is an apocalyptic number.

6518422020 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 6518422020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10013129280).

6518422020 is an abundant number, since it is smaller than the sum of its proper divisors (13507836540).

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

6518422020 is a wasteful number, since it uses less digits than its factorization.

6518422020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57285 (or 57283 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 6518422020 is about 80736.7451660023. The cubic root of 6518422020 is about 1868.0170024604.

The spelling of 6518422020 in words is "six billion, five hundred eighteen million, four hundred twenty-two thousand, twenty".