206734868608 has 128 divisors (see below), whose sum is σ = 441468403200. Its totient is φ = 96092405760.

The previous prime is 206734868569. The next prime is 206734868611. The reversal of 206734868608 is 806868437602.

It is a tau number, because it is divible by the number of its divisors (128).

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, 65276241 + ... + 65279407.

It is an arithmetic number, because the mean of its divisors is an integer number (3448971900).

Almost surely, 2^206734868608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206734868608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220734201600).

206734868608 is an abundant number, since it is smaller than the sum of its proper divisors (234733534592).

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

206734868608 is a wasteful number, since it uses less digits than its factorization.

206734868608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 58.

The spelling of 206734868608 in words is "two hundred six billion, seven hundred thirty-four million, eight hundred sixty-eight thousand, six hundred eight".