201663120001 has 8 divisors (see below), whose sum is σ = 231998443904. Its totient is φ = 171709372800.

The previous prime is 201663119993. The next prime is 201663120059. The reversal of 201663120001 is 100021366102.

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

It is not a de Polignac number, because 201663120001 - 2³ = 201663119993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201663124001) 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, 95393040 + ... + 95395153.

It is an arithmetic number, because the mean of its divisors is an integer number (28999805488).

Almost surely, 2^201663120001 is an apocalyptic number.

It is an amenable number.

201663120001 is a deficient number, since it is larger than the sum of its proper divisors (30335323903).

201663120001 is a wasteful number, since it uses less digits than its factorization.

201663120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190788351.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 201663120001 its reverse (100021366102), we get a palindrome (301684486103).

The spelling of 201663120001 in words is "two hundred one billion, six hundred sixty-three million, one hundred twenty thousand, one".