205236980315 has 32 divisors (see below), whose sum is σ = 251759321856. Its totient is φ = 160561223680.

The previous prime is 205236980293. The next prime is 205236980317. The reversal of 205236980315 is 513089632502.

It is a de Polignac number, because none of the positive numbers 2^k-205236980315 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205236980317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186071054 + ... + 186072156.

It is an arithmetic number, because the mean of its divisors is an integer number (7867478808).

Almost surely, 2^205236980315 is an apocalyptic number.

205236980315 is a deficient number, since it is larger than the sum of its proper divisors (46522341541).

205236980315 is a wasteful number, since it uses less digits than its factorization.

205236980315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 205236980315 in words is "two hundred five billion, two hundred thirty-six million, nine hundred eighty thousand, three hundred fifteen".