201205105165 has 8 divisors (see below), whose sum is σ = 242019634968. Its totient is φ = 160581744960.

The previous prime is 201205105151. The next prime is 201205105247. The reversal of 201205105165 is 561501502102.

It can be written as a sum of positive squares in 4 ways, for example, as 12350543689 + 188854561476 = 111133^2 + 434574^2 .

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

It is not a de Polignac number, because 201205105165 - 2²³ = 201196716557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47790082 + ... + 47794291.

It is an arithmetic number, because the mean of its divisors is an integer number (30252454371).

Almost surely, 2^201205105165 is an apocalyptic number.

It is an amenable number.

201205105165 is a deficient number, since it is larger than the sum of its proper divisors (40814529803).

201205105165 is an equidigital number, since it uses as much as digits as its factorization.

201205105165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95584799.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 201205105165 its reverse (561501502102), we get a palindrome (762706607267).

The spelling of 201205105165 in words is "two hundred one billion, two hundred five million, one hundred five thousand, one hundred sixty-five".