205016001 has 16 divisors (see below), whose sum is σ = 281983104. Its totient is φ = 132395904.

The previous prime is 205015933. The next prime is 205016017. The reversal of 205016001 is 100610502.

It is not a de Polignac number, because 205016001 - 2¹⁰ = 205014977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205016501) 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, 21900 + ... + 29826.

It is an arithmetic number, because the mean of its divisors is an integer number (17623944).

Almost surely, 2^205016001 is an apocalyptic number.

It is an amenable number.

205016001 is a deficient number, since it is larger than the sum of its proper divisors (76967103).

205016001 is a wasteful number, since it uses less digits than its factorization.

205016001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8200.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 205016001 is about 14318.3798315312. The cubic root of 205016001 is about 589.6521947025.

Adding to 205016001 its reverse (100610502), we get a palindrome (305626503).

The spelling of 205016001 in words is "two hundred five million, sixteen thousand, one".