206633646156 has 96 divisors (see below), whose sum is σ = 575592837120. Its totient is φ = 56411175744.

The previous prime is 206633646127. The next prime is 206633646187. The reversal of 206633646156 is 651646336602.

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, 1773135 + ... + 1886073.

It is an arithmetic number, because the mean of its divisors is an integer number (5995758720).

Almost surely, 2^206633646156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206633646156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287796418560).

206633646156 is an abundant number, since it is smaller than the sum of its proper divisors (368959190964).

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

206633646156 is a wasteful number, since it uses less digits than its factorization.

206633646156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113923 (or 113921 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 48.

The spelling of 206633646156 in words is "two hundred six billion, six hundred thirty-three million, six hundred forty-six thousand, one hundred fifty-six".