566421330 has 64 divisors (see below), whose sum is σ = 1409788800. Its totient is φ = 145474560.

The previous prime is 566421313. The next prime is 566421343. The reversal of 566421330 is 33124665.

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

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, 642490 + ... + 643370.

It is an arithmetic number, because the mean of its divisors is an integer number (22027950).

Almost surely, 2^566421330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566421330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704894400).

566421330 is an abundant number, since it is smaller than the sum of its proper divisors (843367470).

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

566421330 is a wasteful number, since it uses less digits than its factorization.

566421330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 566421330 is about 23799.6077698772. The cubic root of 566421330 is about 827.3955862330.

Adding to 566421330 its reverse (33124665), we get a palindrome (599545995).

The spelling of 566421330 in words is "five hundred sixty-six million, four hundred twenty-one thousand, three hundred thirty".