201143666001 has 8 divisors (see below), whose sum is σ = 283967528544. Its totient is φ = 126207790400.

The previous prime is 201143665997. The next prime is 201143666011. The reversal of 201143666001 is 100666341102.

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

It is a cyclic number.

It is not a de Polignac number, because 201143666001 - 2² = 201143665997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201143666001.

It is not an unprimeable number, because it can be changed into a prime (201143666011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971996675 + ... + 1971996776.

It is an arithmetic number, because the mean of its divisors is an integer number (35495941068).

Almost surely, 2^201143666001 is an apocalyptic number.

It is an amenable number.

201143666001 is a deficient number, since it is larger than the sum of its proper divisors (82823862543).

201143666001 is a wasteful number, since it uses less digits than its factorization.

201143666001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943993471.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 201143666001 in words is "two hundred one billion, one hundred forty-three million, six hundred sixty-six thousand, one".