201072165639 has 8 divisors (see below), whose sum is σ = 268100556672. Its totient is φ = 134045942520.

The previous prime is 201072165631. The next prime is 201072165641. The reversal of 201072165639 is 936561270102.

201072165639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 201072165639 - 2³ = 201072165631 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 201072165639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201072165631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311569 + ... + 706554.

It is an arithmetic number, because the mean of its divisors is an integer number (33512569584).

Almost surely, 2^201072165639 is an apocalyptic number.

201072165639 is a deficient number, since it is larger than the sum of its proper divisors (67028391033).

201072165639 is a wasteful number, since it uses less digits than its factorization.

201072165639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083957.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 201072165639 in words is "two hundred one billion, seventy-two million, one hundred sixty-five thousand, six hundred thirty-nine".