201534665013 has 24 divisors (see below), whose sum is σ = 319887824256. Its totient is φ = 121250664000.

The previous prime is 201534665009. The next prime is 201534665021. The reversal of 201534665013 is 310566435102.

201534665013 is a `hidden beast` number, since 2 + 0 + 1 + 534 + 66 + 50 + 13 = 666.

It is not a de Polignac number, because 201534665013 - 2² = 201534665009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201534665053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7416013 + ... + 7443138.

It is an arithmetic number, because the mean of its divisors is an integer number (13328659344).

Almost surely, 2^201534665013 is an apocalyptic number.

It is an amenable number.

201534665013 is a deficient number, since it is larger than the sum of its proper divisors (118353159243).

201534665013 is a wasteful number, since it uses less digits than its factorization.

201534665013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14859305 (or 14859302 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 201534665013 in words is "two hundred one billion, five hundred thirty-four million, six hundred sixty-five thousand, thirteen".