201680566330 has 8 divisors (see below), whose sum is σ = 363025019412. Its totient is φ = 80672226528.

The previous prime is 201680566301. The next prime is 201680566333. The reversal of 201680566330 is 33665086102.

201680566330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 195842536681 + 5838029649 = 442541^2 + 76407^2 .

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

It is not an unprimeable number, because it can be changed into a prime (201680566333) 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, 10084028307 + ... + 10084028326.

Almost surely, 2^201680566330 is an apocalyptic number.

201680566330 is a deficient number, since it is larger than the sum of its proper divisors (161344453082).

201680566330 is a wasteful number, since it uses less digits than its factorization.

201680566330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20168056640.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 201680566330 in words is "two hundred one billion, six hundred eighty million, five hundred sixty-six thousand, three hundred thirty".