206353606056 has 128 divisors (see below), whose sum is σ = 579101066880. Its totient is φ = 60855100416.

The previous prime is 206353606049. The next prime is 206353606097. The reversal of 206353606056 is 650606353602.

206353606056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 206353605999 and 206353606017.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640050 + ... + 906846.

It is an arithmetic number, because the mean of its divisors is an integer number (4524227085).

Almost surely, 2^206353606056 is an apocalyptic number.

206353606056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206353606056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289550533440).

206353606056 is an abundant number, since it is smaller than the sum of its proper divisors (372747460824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206353606056 is a wasteful number, since it uses less digits than its factorization.

206353606056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266923 (or 266919 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 42.

Adding to 206353606056 its reverse (650606353602), we get a palindrome (856959959658).

The spelling of 206353606056 in words is "two hundred six billion, three hundred fifty-three million, six hundred six thousand, fifty-six".