206805099308 has 6 divisors (see below), whose sum is σ = 361908923796. Its totient is φ = 103402549652.

The previous prime is 206805099299. The next prime is 206805099313. The reversal of 206805099308 is 803990508602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850637410 + ... + 25850637417.

It is an arithmetic number, because the mean of its divisors is an integer number (60318153966).

Almost surely, 2^206805099308 is an apocalyptic number.

It is an amenable number.

206805099308 is a deficient number, since it is larger than the sum of its proper divisors (155103824488).

206805099308 is a wasteful number, since it uses less digits than its factorization.

206805099308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51701274831 (or 51701274829 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 206805099308 in words is "two hundred six billion, eight hundred five million, ninety-nine thousand, three hundred eight".