20006600566 has 8 divisors (see below), whose sum is σ = 30091672800. Its totient is φ = 9976042968.

The previous prime is 20006600561. The next prime is 20006600567. The reversal of 20006600566 is 66500660002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006600561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13627741 + ... + 13629208.

It is an arithmetic number, because the mean of its divisors is an integer number (3761459100).

Almost surely, 2^20006600566 is an apocalyptic number.

20006600566 is a deficient number, since it is larger than the sum of its proper divisors (10085072234).

20006600566 is a wasteful number, since it uses less digits than its factorization.

20006600566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27257318.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 20006600566 in words is "twenty billion, six million, six hundred thousand, five hundred sixty-six".