206682981376 has 33 divisors (see below), whose sum is σ = 413193207679. Its totient is φ = 103334216704.

The previous prime is 206682981343. The next prime is 206682981383. The reversal of 206682981376 is 673189286602.

The square root of 206682981376 is 454624.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206682981376.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14540865 + ... + 14555071.

Almost surely, 2^206682981376 is an apocalyptic number.

206682981376 is the 454624-th square number.

It is an amenable number.

206682981376 is a deficient number, since it is larger than the sum of its proper divisors (206510226303).

206682981376 is an frugal number, since it uses more digits than its factorization.

206682981376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28434 (or 14209 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 206682981376 in words is "two hundred six billion, six hundred eighty-two million, nine hundred eighty-one thousand, three hundred seventy-six".