655000566 has 96 divisors (see below), whose sum is σ = 1551115008. Its totient is φ = 182710080.

The previous prime is 655000561. The next prime is 655000609. The reversal of 655000566 is 665000556.

655000566 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 (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655000561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 881191 + ... + 881933.

It is an arithmetic number, because the mean of its divisors is an integer number (16157448).

Almost surely, 2^655000566 is an apocalyptic number.

655000566 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 655000566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775557504).

655000566 is an abundant number, since it is smaller than the sum of its proper divisors (896114442).

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

655000566 is a wasteful number, since it uses less digits than its factorization.

655000566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 655000566 is about 25592.9788418621. The cubic root of 655000566 is about 868.4548104219.

The spelling of 655000566 in words is "six hundred fifty-five million, five hundred sixty-six", and thus it is an aban number.