206156131326266 has 8 divisors (see below), whose sum is σ = 337346396715744. Its totient is φ = 93707332421020.

The previous prime is 206156131326241. The next prime is 206156131326311. The reversal of 206156131326266 is 662623131651602.

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, 4685366621030 + ... + 4685366621073.

It is an arithmetic number, because the mean of its divisors is an integer number (42168299589468).

Almost surely, 2^{206156131326266} is an apocalyptic number.

206156131326266 is a deficient number, since it is larger than the sum of its proper divisors (131190265389478).

206156131326266 is a wasteful number, since it uses less digits than its factorization.

206156131326266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370733242116.

The product of its (nonzero) digits is 2799360, while the sum is 50.

Adding to 206156131326266 its reverse (662623131651602), we get a palindrome (868779262977868).

The spelling of 206156131326266 in words is "two hundred six trillion, one hundred fifty-six billion, one hundred thirty-one million, three hundred twenty-six thousand, two hundred sixty-six".