4661566 has 24 divisors (see below), whose sum is σ = 8762040. Its totient is φ = 1843632.

The previous prime is 4661557. The next prime is 4661567. The reversal of 4661566 is 6651664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556 + ... + 3103.

It is an arithmetic number, because the mean of its divisors is an integer number (365085).

Almost surely, 2^4661566 is an apocalyptic number.

4661566 is a deficient number, since it is larger than the sum of its proper divisors (4100474).

4661566 is a wasteful number, since it uses less digits than its factorization.

4661566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688 (or 3681 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 4661566 is about 2159.0660017702. The cubic root of 4661566 is about 167.0490252518.

The spelling of 4661566 in words is "four million, six hundred sixty-one thousand, five hundred sixty-six".