201660636133 has 4 divisors (see below), whose sum is σ = 219993421248. Its totient is φ = 183327851020.

The previous prime is 201660636113. The next prime is 201660636143. The reversal of 201660636133 is 331636066102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201660636133 - 2⁹ = 201660635621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201660636092 and 201660636101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201660636113) 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, 9166392541 + ... + 9166392562.

It is an arithmetic number, because the mean of its divisors is an integer number (54998355312).

Almost surely, 2^201660636133 is an apocalyptic number.

It is an amenable number.

201660636133 is a deficient number, since it is larger than the sum of its proper divisors (18332785115).

201660636133 is a wasteful number, since it uses less digits than its factorization.

201660636133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18332785114.

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 201660636133 in words is "two hundred one billion, six hundred sixty million, six hundred thirty-six thousand, one hundred thirty-three".