206135953318 has 8 divisors (see below), whose sum is σ = 309283082712. Its totient is φ = 103041592416.

The previous prime is 206135953217. The next prime is 206135953363. The reversal of 206135953318 is 813359531602.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13182355 + ... + 13197982.

It is an arithmetic number, because the mean of its divisors is an integer number (38660385339).

Almost surely, 2^206135953318 is an apocalyptic number.

206135953318 is a deficient number, since it is larger than the sum of its proper divisors (103147129394).

206135953318 is a wasteful number, since it uses less digits than its factorization.

206135953318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26384246.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 206135953318 in words is "two hundred six billion, one hundred thirty-five million, nine hundred fifty-three thousand, three hundred eighteen".