206670090886 has 32 divisors (see below), whose sum is σ = 354887958528. Its totient is φ = 88423941600.

The previous prime is 206670090871. The next prime is 206670090899. The reversal of 206670090886 is 688090076602.

206670090886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 22925716 + ... + 22934728.

It is an arithmetic number, because the mean of its divisors is an integer number (11090248704).

Almost surely, 2^206670090886 is an apocalyptic number.

206670090886 is a deficient number, since it is larger than the sum of its proper divisors (148217867642).

206670090886 is a wasteful number, since it uses less digits than its factorization.

206670090886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11596.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 206670090886 in words is "two hundred six billion, six hundred seventy million, ninety thousand, eight hundred eighty-six".