206020240636 has 48 divisors (see below), whose sum is σ = 412767846400. Its totient is φ = 88138689408.

The previous prime is 206020240589. The next prime is 206020240637. The reversal of 206020240636 is 636042020602.

It is a junction number, because it is equal to n+sod(n) for n = 206020240598 and 206020240607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206020240637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49533925 + ... + 49538083.

Almost surely, 2^206020240636 is an apocalyptic number.

It is an amenable number.

206020240636 is an abundant number, since it is smaller than the sum of its proper divisors (206747605764).

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

206020240636 is a wasteful number, since it uses less digits than its factorization.

206020240636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866 (or 6864 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 206020240636 in words is "two hundred six billion, twenty million, two hundred forty thousand, six hundred thirty-six".