208666868796 has 96 divisors (see below), whose sum is σ = 568976486400. Its totient is φ = 66041801280.

The previous prime is 208666868789. The next prime is 208666868807. The reversal of 208666868796 is 697868666802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410536 + ... + 765423.

It is an arithmetic number, because the mean of its divisors is an integer number (5926838400).

Almost surely, 2^208666868796 is an apocalyptic number.

It is an amenable number.

208666868796 is an abundant number, since it is smaller than the sum of its proper divisors (360309617604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208666868796 is a wasteful number, since it uses less digits than its factorization.

208666868796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176056 (or 1176048 counting only the distinct ones).

The product of its (nonzero) digits is 501645312, while the sum is 72.

The spelling of 208666868796 in words is "two hundred eight billion, six hundred sixty-six million, eight hundred sixty-eight thousand, seven hundred ninety-six".