566528327820 has 384 divisors, whose sum is σ = 2244078950400. Its totient is φ = 115409193984.

The previous prime is 566528327803. The next prime is 566528327837. The reversal of 566528327820 is 28723825665.

It is a happy number.

566528327820 is a `hidden beast` number, since 5 + 6 + 6 + 528 + 32 + 7 + 82 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (566528327803) and next prime (566528327837).

It is a super-3 number, since 3×566528327820³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1226287 + ... + 1623833.

It is an arithmetic number, because the mean of its divisors is an integer number (5843955600).

Almost surely, 2^566528327820 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 566528327820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1122039475200).

566528327820 is an abundant number, since it is smaller than the sum of its proper divisors (1677550622580).

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

566528327820 is a wasteful number, since it uses less digits than its factorization.

566528327820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397614 (or 397606 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 566528327820 in words is "five hundred sixty-six billion, five hundred twenty-eight million, three hundred twenty-seven thousand, eight hundred twenty".