206660703912959 has 4 divisors (see below), whose sum is σ = 206660742439416. Its totient is φ = 206660665386504.

The previous prime is 206660703912937. The next prime is 206660703912973. The reversal of 206660703912959 is 959219307066602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206660703912959 - 2²⁴ = 206660687135743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206660703912895 and 206660703912904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206660703912979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9601829 + ... + 22483694.

It is an arithmetic number, because the mean of its divisors is an integer number (51665185609854).

Almost surely, 2^{206660703912959} is an apocalyptic number.

206660703912959 is a deficient number, since it is larger than the sum of its proper divisors (38526457).

206660703912959 is an equidigital number, since it uses as much as digits as its factorization.

206660703912959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38526456.

The product of its (nonzero) digits is 66134880, while the sum is 65.

The spelling of 206660703912959 in words is "two hundred six trillion, six hundred sixty billion, seven hundred three million, nine hundred twelve thousand, nine hundred fifty-nine".