206046890666 has 8 divisors (see below), whose sum is σ = 309445879584. Its totient is φ = 102898264140.

The previous prime is 206046890633. The next prime is 206046890717. The reversal of 206046890666 is 666098640602.

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

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, 62588540 + ... + 62591831.

It is an arithmetic number, because the mean of its divisors is an integer number (38680734948).

Almost surely, 2^206046890666 is an apocalyptic number.

206046890666 is a deficient number, since it is larger than the sum of its proper divisors (103398988918).

206046890666 is a wasteful number, since it uses less digits than its factorization.

206046890666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125181196.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 206046890666 in words is "two hundred six billion, forty-six million, eight hundred ninety thousand, six hundred sixty-six".