205112016001 has 16 divisors (see below), whose sum is σ = 206778792384. Its totient is φ = 203453567424.

The previous prime is 205112015993. The next prime is 205112016013. The reversal of 205112016001 is 100610211502.

It is a cyclic number.

It is not a de Polignac number, because 205112016001 - 2³ = 205112015993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205112016001.

It is not an unprimeable number, because it can be changed into a prime (205112016071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87021315 + ... + 87023671.

It is an arithmetic number, because the mean of its divisors is an integer number (12923674524).

Almost surely, 2^205112016001 is an apocalyptic number.

It is an amenable number.

205112016001 is a deficient number, since it is larger than the sum of its proper divisors (1666776383).

205112016001 is a wasteful number, since it uses less digits than its factorization.

205112016001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 205112016001 its reverse (100610211502), we get a palindrome (305722227503).

The spelling of 205112016001 in words is "two hundred five billion, one hundred twelve million, sixteen thousand, one".