206061006005 has 16 divisors (see below), whose sum is σ = 249573020400. Its totient is φ = 163315975680.

The previous prime is 206061005993. The next prime is 206061006031. The reversal of 206061006005 is 500600160602.

It can be written as a sum of positive squares in 8 ways, for example, as 7731509041 + 198329496964 = 87929^2 + 445342^2 .

It is not a de Polignac number, because 206061006005 - 2²⁶ = 205993897141 is a prime.

It is a super-2 number, since 2×206061006005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5523515 + ... + 5560695.

It is an arithmetic number, because the mean of its divisors is an integer number (15598313775).

Almost surely, 2^206061006005 is an apocalyptic number.

It is an amenable number.

206061006005 is a deficient number, since it is larger than the sum of its proper divisors (43512014395).

206061006005 is a wasteful number, since it uses less digits than its factorization.

206061006005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47464.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 206061006005 its reverse (500600160602), we get a palindrome (706661166607).

The spelling of 206061006005 in words is "two hundred six billion, sixty-one million, six thousand, five".