206445457085 has 32 divisors (see below), whose sum is σ = 293047372800. Its totient is φ = 136606821120.

The previous prime is 206445457033. The next prime is 206445457103. The reversal of 206445457085 is 580754544602.

206445457085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 206445457085 - 2¹² = 206445452989 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 1844711 + ... + 1953419.

It is an arithmetic number, because the mean of its divisors is an integer number (9157730400).

Almost surely, 2^206445457085 is an apocalyptic number.

It is an amenable number.

206445457085 is a deficient number, since it is larger than the sum of its proper divisors (86601915715).

206445457085 is a wasteful number, since it uses less digits than its factorization.

206445457085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110621.

The product of its (nonzero) digits is 5376000, while the sum is 50.

The spelling of 206445457085 in words is "two hundred six billion, four hundred forty-five million, four hundred fifty-seven thousand, eighty-five".