206641622530055 has 16 divisors (see below), whose sum is σ = 248597750436384. Its totient is φ = 164894773127040.

The previous prime is 206641622530043. The next prime is 206641622530103. The reversal of 206641622530055 is 550035226146602.

It is not a de Polignac number, because 206641622530055 - 2²⁰ = 206641621481479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206641622529991 and 206641622530009.

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, 164090024 + ... + 165344546.

It is an arithmetic number, because the mean of its divisors is an integer number (15537359402274).

Almost surely, 2^{206641622530055} is an apocalyptic number.

206641622530055 is a deficient number, since it is larger than the sum of its proper divisors (41956127906329).

206641622530055 is a wasteful number, since it uses less digits than its factorization.

206641622530055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337906.

The product of its (nonzero) digits is 2592000, while the sum is 47.

Adding to 206641622530055 its reverse (550035226146602), we get a palindrome (756676848676657).

The spelling of 206641622530055 in words is "two hundred six trillion, six hundred forty-one billion, six hundred twenty-two million, five hundred thirty thousand, fifty-five".