200066615566 has 4 divisors (see below), whose sum is σ = 300099923352. Its totient is φ = 100033307782.

The previous prime is 200066615503. The next prime is 200066615579. The reversal of 200066615566 is 665516660002.

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, 50016653890 + ... + 50016653893.

It is an arithmetic number, because the mean of its divisors is an integer number (75024980838).

Almost surely, 2^200066615566 is an apocalyptic number.

200066615566 is a deficient number, since it is larger than the sum of its proper divisors (100033307786).

200066615566 is a wasteful number, since it uses less digits than its factorization.

200066615566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100033307785.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 200066615566 in words is "two hundred billion, sixty-six million, six hundred fifteen thousand, five hundred sixty-six".