206372985696 has 144 divisors (see below), whose sum is σ = 606706420320. Its totient is φ = 66497034240.

The previous prime is 206372985671. The next prime is 206372985701. The reversal of 206372985696 is 696589273602.

206372985696 is a `hidden beast` number, since 2 + 0 + 63 + 7 + 2 + 9 + 8 + 569 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1206901 + ... + 1367243.

It is an arithmetic number, because the mean of its divisors is an integer number (4213239030).

Almost surely, 2^206372985696 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 206372985696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303353210160).

206372985696 is an abundant number, since it is smaller than the sum of its proper divisors (400333434624).

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

206372985696 is a wasteful number, since it uses less digits than its factorization.

206372985696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160509 (or 160498 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 206372985696 in words is "two hundred six billion, three hundred seventy-two million, nine hundred eighty-five thousand, six hundred ninety-six".