2641566 has 8 divisors (see below), whose sum is σ = 5283144. Its totient is φ = 880520.

The previous prime is 2641559. The next prime is 2641567. The reversal of 2641566 is 6651462.

2641566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2641566 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641567) 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 3 ways as a sum of consecutive naturals, for example, 220125 + ... + 220136.

It is an arithmetic number, because the mean of its divisors is an integer number (660393).

2^2641566 is an apocalyptic number.

2641566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2641566 is a wasteful number, since it uses less digits than its factorization.

2641566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440266.

The product of its digits is 8640, while the sum is 30.

The square root of 2641566 is about 1625.2895126715. The cubic root of 2641566 is about 138.2357867814.

It can be divided in two parts, 264 and 1566, that added together give a triangular number (1830 = T₆₀).

The spelling of 2641566 in words is "two million, six hundred forty-one thousand, five hundred sixty-six".