206655140122 has 8 divisors (see below), whose sum is σ = 310000533696. Its totient is φ = 103321628892.

The previous prime is 206655140089. The next prime is 206655140129. The reversal of 206655140122 is 221041556602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (206655140129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2926978 + ... + 2996749.

It is an arithmetic number, because the mean of its divisors is an integer number (38750066712).

Almost surely, 2^206655140122 is an apocalyptic number.

206655140122 is a deficient number, since it is larger than the sum of its proper divisors (103345393574).

206655140122 is a wasteful number, since it uses less digits than its factorization.

206655140122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941172.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 206655140122 its reverse (221041556602), we get a palindrome (427696696724).

The spelling of 206655140122 in words is "two hundred six billion, six hundred fifty-five million, one hundred forty thousand, one hundred twenty-two".