206403205724 has 12 divisors (see below), whose sum is σ = 368020810584. Its totient is φ = 101254402704.

The previous prime is 206403205699. The next prime is 206403205741. The reversal of 206403205724 is 427502304602.

206403205724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486799802 + ... + 486800225.

It is an arithmetic number, because the mean of its divisors is an integer number (30668400882).

Almost surely, 2^206403205724 is an apocalyptic number.

It is an amenable number.

206403205724 is a deficient number, since it is larger than the sum of its proper divisors (161617604860).

206403205724 is a wasteful number, since it uses less digits than its factorization.

206403205724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973600084 (or 973600082 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 206403205724 in words is "two hundred six billion, four hundred three million, two hundred five thousand, seven hundred twenty-four".