566620656 has 80 divisors (see below), whose sum is σ = 1713723648. Its totient is φ = 157939200.

The previous prime is 566620651. The next prime is 566620657. The reversal of 566620656 is 656026665.

566620656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566620651) 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, 6790 + ... + 34341.

Almost surely, 2^566620656 is an apocalyptic number.

566620656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566620656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856861824).

566620656 is an abundant number, since it is smaller than the sum of its proper divisors (1147102992).

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

566620656 is a wasteful number, since it uses less digits than its factorization.

566620656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41190 (or 41184 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 566620656 is about 23803.7949915554. The cubic root of 566620656 is about 827.4926294893.

The spelling of 566620656 in words is "five hundred sixty-six million, six hundred twenty thousand, six hundred fifty-six".