6562534220 has 72 divisors (see below), whose sum is σ = 15183373632. Its totient is φ = 2380815360.

The previous prime is 6562534213. The next prime is 6562534229. The reversal of 6562534220 is 224352656.

It is not an unprimeable number, because it can be changed into a prime (6562534229) 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, 1117532 + ... + 1123388.

Almost surely, 2^6562534220 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 6562534220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7591686816).

6562534220 is an abundant number, since it is smaller than the sum of its proper divisors (8620839412).

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

6562534220 is a wasteful number, since it uses less digits than its factorization.

6562534220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351 (or 6338 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 6562534220 is about 81009.4699402483. The cubic root of 6562534220 is about 1872.2213510112.

Adding to 6562534220 its reverse (224352656), we get a palindrome (6786886876).

The spelling of 6562534220 in words is "six billion, five hundred sixty-two million, five hundred thirty-four thousand, two hundred twenty".