206222065166 has 8 divisors (see below), whose sum is σ = 333127951464. Its totient is φ = 95179414680.

The previous prime is 206222065123. The next prime is 206222065169. The reversal of 206222065166 is 661560222602.

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

It is a super-2 number, since 2×206222065166² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206222065169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965808920 + ... + 3965808971.

It is an arithmetic number, because the mean of its divisors is an integer number (41640993933).

Almost surely, 2^206222065166 is an apocalyptic number.

206222065166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206222065166 is a deficient number, since it is larger than the sum of its proper divisors (126905886298).

206222065166 is a wasteful number, since it uses less digits than its factorization.

206222065166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7931617906.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 206222065166 its reverse (661560222602), we get a palindrome (867782287768).

The spelling of 206222065166 in words is "two hundred six billion, two hundred twenty-two million, sixty-five thousand, one hundred sixty-six".