206404063356 has 24 divisors (see below), whose sum is σ = 481660779600. Its totient is φ = 68794026112.

The previous prime is 206404063351. The next prime is 206404063357. The reversal of 206404063356 is 653360404602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206404063351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798081 + ... + 1024568.

It is an arithmetic number, because the mean of its divisors is an integer number (20069199150).

Almost surely, 2^206404063356 is an apocalyptic number.

It is an amenable number.

206404063356 is an abundant number, since it is smaller than the sum of its proper divisors (275256716244).

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

206404063356 is a wasteful number, since it uses less digits than its factorization.

206404063356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832093 (or 1832091 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 206404063356 its reverse (653360404602), we get a palindrome (859764467958).

The spelling of 206404063356 in words is "two hundred six billion, four hundred four million, sixty-three thousand, three hundred fifty-six".