206650241642 has 16 divisors (see below), whose sum is σ = 342841774632. Its totient is φ = 92799276480.

The previous prime is 206650241621. The next prime is 206650241653. The reversal of 206650241642 is 246142056602.

It can be written as a sum of positive squares in 4 ways, for example, as 205735723561 + 914518081 = 453581^2 + 30241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206650241596 and 206650241605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107405609 + ... + 107407532.

Almost surely, 2^206650241642 is an apocalyptic number.

206650241642 is a deficient number, since it is larger than the sum of its proper divisors (136191532990).

206650241642 is a wasteful number, since it uses less digits than its factorization.

206650241642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214813193.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 206650241642 in words is "two hundred six billion, six hundred fifty million, two hundred forty-one thousand, six hundred forty-two".