566605890 has 48 divisors (see below), whose sum is σ = 1477502208. Its totient is φ = 150651168.

The previous prime is 566605889. The next prime is 566605909. The reversal of 566605890 is 98506665.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22159 + ... + 40301.

It is an arithmetic number, because the mean of its divisors is an integer number (30781296).

Almost surely, 2^566605890 is an apocalyptic number.

566605890 is an abundant number, since it is smaller than the sum of its proper divisors (910896318).

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

566605890 is a wasteful number, since it uses less digits than its factorization.

566605890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18503 (or 18500 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 566605890 is about 23803.4848289069. The cubic root of 566605890 is about 827.4854413396.

The spelling of 566605890 in words is "five hundred sixty-six million, six hundred five thousand, eight hundred ninety".