566551660 has 96 divisors (see below), whose sum is σ = 1277337600. Its totient is φ = 210712320.

The previous prime is 566551637. The next prime is 566551679. The reversal of 566551660 is 66155665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2106006 + ... + 2106274.

It is an arithmetic number, because the mean of its divisors is an integer number (13305600).

Almost surely, 2^566551660 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 566551660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638668800).

566551660 is an abundant number, since it is smaller than the sum of its proper divisors (710785940).

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

566551660 is a wasteful number, since it uses less digits than its factorization.

566551660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 566551660 is about 23802.3456827263. The cubic root of 566551660 is about 827.4590408803.

The spelling of 566551660 in words is "five hundred sixty-six million, five hundred fifty-one thousand, six hundred sixty".