205116004 has 12 divisors (see below), whose sum is σ = 362308464. Its totient is φ = 101599304.

The previous prime is 205115993. The next prime is 205116017. The reversal of 205116004 is 400611502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239194 + ... + 240049.

It is an arithmetic number, because the mean of its divisors is an integer number (30192372).

Almost surely, 2^205116004 is an apocalyptic number.

It is an amenable number.

205116004 is a deficient number, since it is larger than the sum of its proper divisors (157192460).

205116004 is a wasteful number, since it uses less digits than its factorization.

205116004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479354 (or 479352 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 205116004 is about 14321.8715257469. The cubic root of 205116004 is about 589.7480529169.

Adding to 205116004 its reverse (400611502), we get a palindrome (605727506).

The spelling of 205116004 in words is "two hundred five million, one hundred sixteen thousand, four".