206661610222110 has 32 divisors (see below), whose sum is σ = 551097627259680. Its totient is φ = 55109762725824.

The previous prime is 206661610222087. The next prime is 206661610222153. The reversal of 206661610222110 is 11222016166602.

It is a super-2 number, since 2×206661610222110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382706685327 + ... + 382706685866.

It is an arithmetic number, because the mean of its divisors is an integer number (17221800851865).

Almost surely, 2^{206661610222110} is an apocalyptic number.

206661610222110 is an abundant number, since it is smaller than the sum of its proper divisors (344436017037570).

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

206661610222110 is a wasteful number, since it uses less digits than its factorization.

206661610222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765413371209 (or 765413371203 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 206661610222110 its reverse (11222016166602), we get a palindrome (217883626388712).

The spelling of 206661610222110 in words is "two hundred six trillion, six hundred sixty-one billion, six hundred ten million, two hundred twenty-two thousand, one hundred ten".