115206561666206 has 4 divisors (see below), whose sum is σ = 172809842499312. Its totient is φ = 57603280833102.

The previous prime is 115206561666143. The next prime is 115206561666227. The reversal of 115206561666206 is 602666165602511.

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, 28801640416550 + ... + 28801640416553.

It is an arithmetic number, because the mean of its divisors is an integer number (43202460624828).

Almost surely, 2^{115206561666206} is an apocalyptic number.

115206561666206 is a deficient number, since it is larger than the sum of its proper divisors (57603280833106).

115206561666206 is an equidigital number, since it uses as much as digits as its factorization.

115206561666206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57603280833105.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 115206561666206 in words is "one hundred fifteen trillion, two hundred six billion, five hundred sixty-one million, six hundred sixty-six thousand, two hundred six".