205144104315 has 8 divisors (see below), whose sum is σ = 328230566928. Its totient is φ = 109410188960.

The previous prime is 205144104313. The next prime is 205144104367. The reversal of 205144104315 is 513401441502.

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

It is not a de Polignac number, because 205144104315 - 2¹ = 205144104313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205144104313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6838136796 + ... + 6838136825.

It is an arithmetic number, because the mean of its divisors is an integer number (41028820866).

Almost surely, 2^205144104315 is an apocalyptic number.

205144104315 is a deficient number, since it is larger than the sum of its proper divisors (123086462613).

205144104315 is a wasteful number, since it uses less digits than its factorization.

205144104315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13676273629.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 205144104315 its reverse (513401441502), we get a palindrome (718545545817).

The spelling of 205144104315 in words is "two hundred five billion, one hundred forty-four million, one hundred four thousand, three hundred fifteen".