206256531413 has 16 divisors (see below), whose sum is σ = 214283520000. Its totient is φ = 198360150912.

The previous prime is 206256531389. The next prime is 206256531421. The reversal of 206256531413 is 314135652602.

206256531413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 206256531413 - 2³² = 201961564117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206256531443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11710988 + ... + 11728586.

It is an arithmetic number, because the mean of its divisors is an integer number (13392720000).

Almost surely, 2^206256531413 is an apocalyptic number.

It is an amenable number.

206256531413 is a deficient number, since it is larger than the sum of its proper divisors (8026988587).

206256531413 is a wasteful number, since it uses less digits than its factorization.

206256531413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21284.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 206256531413 in words is "two hundred six billion, two hundred fifty-six million, five hundred thirty-one thousand, four hundred thirteen".