566420020 has 48 divisors (see below), whose sum is σ = 1255968000. Its totient is φ = 213978240.

The previous prime is 566420017. The next prime is 566420021. The reversal of 566420020 is 20024665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566420021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130485 + ... + 134755.

It is an arithmetic number, because the mean of its divisors is an integer number (26166000).

Almost surely, 2^566420020 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 566420020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627984000).

566420020 is an abundant number, since it is smaller than the sum of its proper divisors (689547980).

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

566420020 is a wasteful number, since it uses less digits than its factorization.

566420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4648 (or 4646 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 566420020 is about 23799.5802483993. The cubic root of 566420020 is about 827.3949483750.

Adding to 566420020 its reverse (20024665), we get a palindrome (586444685).

The spelling of 566420020 in words is "five hundred sixty-six million, four hundred twenty thousand, twenty".