2805740566 has 4 divisors (see below), whose sum is σ = 4208610852. Its totient is φ = 1402870282.

The previous prime is 2805740543. The next prime is 2805740573. The reversal of 2805740566 is 6650475082.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701435140 + ... + 701435143.

It is an arithmetic number, because the mean of its divisors is an integer number (1052152713).

Almost surely, 2^2805740566 is an apocalyptic number.

2805740566 is a deficient number, since it is larger than the sum of its proper divisors (1402870286).

2805740566 is a wasteful number, since it uses less digits than its factorization.

2805740566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402870285.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 2805740566 is about 52969.2416974229. The cubic root of 2805740566 is about 1410.4223146900.

The spelling of 2805740566 in words is "two billion, eight hundred five million, seven hundred forty thousand, five hundred sixty-six".