206431655324 has 12 divisors (see below), whose sum is σ = 361320258264. Its totient is φ = 103197295824.

The previous prime is 206431655321. The next prime is 206431655369. The reversal of 206431655324 is 423556134602.

It is a super-2 number, since 2×206431655324² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206431655321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4607882 + ... + 4652465.

It is an arithmetic number, because the mean of its divisors is an integer number (30110021522).

Almost surely, 2^206431655324 is an apocalyptic number.

It is an amenable number.

206431655324 is a deficient number, since it is larger than the sum of its proper divisors (154888602940).

206431655324 is a wasteful number, since it uses less digits than its factorization.

206431655324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9265924 (or 9265922 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 206431655324 its reverse (423556134602), we get a palindrome (629987789926).

The spelling of 206431655324 in words is "two hundred six billion, four hundred thirty-one million, six hundred fifty-five thousand, three hundred twenty-four".