208066831630 has 96 divisors (see below), whose sum is σ = 462052960416. Its totient is φ = 67030419456.

The previous prime is 208066831627. The next prime is 208066831669. The reversal of 208066831630 is 36138660802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5119369 + ... + 5159851.

It is an arithmetic number, because the mean of its divisors is an integer number (4813051671).

Almost surely, 2^208066831630 is an apocalyptic number.

208066831630 is an abundant number, since it is smaller than the sum of its proper divisors (253986128786).

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

208066831630 is a wasteful number, since it uses less digits than its factorization.

208066831630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41138 (or 41131 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 208066831630 in words is "two hundred eight billion, sixty-six million, eight hundred thirty-one thousand, six hundred thirty".