206670056 has 16 divisors (see below), whose sum is σ = 400007040. Its totient is φ = 100001520.

The previous prime is 206670041. The next prime is 206670059. The reversal of 206670056 is 650076602.

It is not an unprimeable number, because it can be changed into a prime (206670059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416426 + ... + 416921.

It is an arithmetic number, because the mean of its divisors is an integer number (25000440).

Almost surely, 2^206670056 is an apocalyptic number.

It is an amenable number.

206670056 is a deficient number, since it is larger than the sum of its proper divisors (193336984).

206670056 is a wasteful number, since it uses less digits than its factorization.

206670056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833384 (or 833380 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 206670056 is about 14376.0236505092. The cubic root of 206670056 is about 591.2337069083.

The spelling of 206670056 in words is "two hundred six million, six hundred seventy thousand, fifty-six".