206211206064 has 160 divisors (see below), whose sum is σ = 546987133440. Its totient is φ = 66924748800.

The previous prime is 206211206063. The next prime is 206211206077. The reversal of 206211206064 is 460602112602.

It is not an unprimeable number, because it can be changed into a prime (206211206063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102235584 + ... + 102237600.

It is an arithmetic number, because the mean of its divisors is an integer number (3418669584).

Almost surely, 2^206211206064 is an apocalyptic number.

206211206064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206211206064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273493566720).

206211206064 is an abundant number, since it is smaller than the sum of its proper divisors (340775927376).

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

206211206064 is a wasteful number, since it uses less digits than its factorization.

206211206064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 206211206064 its reverse (460602112602), we get a palindrome (666813318666).

The spelling of 206211206064 in words is "two hundred six billion, two hundred eleven million, two hundred six thousand, sixty-four".