2000559966 has 16 divisors (see below), whose sum is σ = 4236480144. Its totient is φ = 627626624.

The previous prime is 2000559961. The next prime is 2000559991. The reversal of 2000559966 is 6699550002.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000559961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9806565 + ... + 9806768.

It is an arithmetic number, because the mean of its divisors is an integer number (264780009).

Almost surely, 2^2000559966 is an apocalyptic number.

2000559966 is an abundant number, since it is smaller than the sum of its proper divisors (2235920178).

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

2000559966 is a wasteful number, since it uses less digits than its factorization.

2000559966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19613355.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 2000559966 is about 44727.6197220465. The cubic root of 2000559966 is about 1260.0386244144.

The spelling of 2000559966 in words is "two billion, five hundred fifty-nine thousand, nine hundred sixty-six".