206115368 has 8 divisors (see below), whose sum is σ = 386466330. Its totient is φ = 103057680.

The previous prime is 206115359. The next prime is 206115391. The reversal of 206115368 is 863511602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 156300004 + 49815364 = 12502^2 + 7058^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12882203 + ... + 12882218.

Almost surely, 2^206115368 is an apocalyptic number.

It is an amenable number.

206115368 is a deficient number, since it is larger than the sum of its proper divisors (180350962).

206115368 is a wasteful number, since it uses less digits than its factorization.

206115368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25764427 (or 25764423 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 206115368 is about 14356.7185665806. The cubic root of 206115368 is about 590.7042896565.

The spelling of 206115368 in words is "two hundred six million, one hundred fifteen thousand, three hundred sixty-eight".