206406518513 has 8 divisors (see below), whose sum is σ = 222330022656. Its totient is φ = 190489597200.

The previous prime is 206406518501. The next prime is 206406518531. The reversal of 206406518513 is 315815604602.

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 206406518513 - 2¹⁰ = 206406517489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206406518533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580483 + ... + 1706088.

It is an arithmetic number, because the mean of its divisors is an integer number (27791252832).

Almost surely, 2^206406518513 is an apocalyptic number.

It is an amenable number.

206406518513 is a deficient number, since it is larger than the sum of its proper divisors (15923504143).

206406518513 is a wasteful number, since it uses less digits than its factorization.

206406518513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291415.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 206406518513 in words is "two hundred six billion, four hundred six million, five hundred eighteen thousand, five hundred thirteen".