206615484605 has 4 divisors (see below), whose sum is σ = 247938581532. Its totient is φ = 165292387680.

The previous prime is 206615484589. The next prime is 206615484631. The reversal of 206615484605 is 506484516602.

206615484605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 107671265689 + 98944218916 = 328133^2 + 314554^2 .

It is not a de Polignac number, because 206615484605 - 2⁴ = 206615484589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206615484605.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20661548456 + ... + 20661548465.

It is an arithmetic number, because the mean of its divisors is an integer number (61984645383).

Almost surely, 2^206615484605 is an apocalyptic number.

It is an amenable number.

206615484605 is a deficient number, since it is larger than the sum of its proper divisors (41323096927).

206615484605 is an equidigital number, since it uses as much as digits as its factorization.

206615484605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41323096926.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 206615484605 in words is "two hundred six billion, six hundred fifteen million, four hundred eighty-four thousand, six hundred five".