2000555566 has 8 divisors (see below), whose sum is σ = 3015055944. Its totient is φ = 995536920.

The previous prime is 2000555549. The next prime is 2000555593. The reversal of 2000555566 is 6655550002.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369905 + ... + 2370748.

It is an arithmetic number, because the mean of its divisors is an integer number (376881993).

Almost surely, 2^2000555566 is an apocalyptic number.

2000555566 is a deficient number, since it is larger than the sum of its proper divisors (1014500378).

2000555566 is a wasteful number, since it uses less digits than its factorization.

2000555566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740866.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 2000555566 is about 44727.5705354091. The cubic root of 2000555566 is about 1260.0377006440.

The spelling of 2000555566 in words is "two billion, five hundred fifty-five thousand, five hundred sixty-six".