206231476645 has 8 divisors (see below), whose sum is σ = 247710589056. Its totient is φ = 164829969936.

The previous prime is 206231476601. The next prime is 206231476657. The reversal of 206231476645 is 546674132602.

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

It is a cyclic number.

It is not a de Polignac number, because 206231476645 - 2¹⁹ = 206230952357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206231476595 and 206231476604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19395577 + ... + 19406206.

It is an arithmetic number, because the mean of its divisors is an integer number (30963823632).

Almost surely, 2^206231476645 is an apocalyptic number.

It is an amenable number.

206231476645 is a deficient number, since it is larger than the sum of its proper divisors (41479112411).

206231476645 is a wasteful number, since it uses less digits than its factorization.

206231476645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38802851.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 206231476645 in words is "two hundred six billion, two hundred thirty-one million, four hundred seventy-six thousand, six hundred forty-five".