205251052616215 has 8 divisors (see below), whose sum is σ = 246313628400960. Its totient is φ = 164192598585312.

The previous prime is 205251052616167. The next prime is 205251052616251. The reversal of 205251052616215 is 512616250152502.

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

It is a cyclic number.

It is not a de Polignac number, because 205251052616215 - 2³¹ = 205248905132567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030328904 + ... + 1030528093.

It is an arithmetic number, because the mean of its divisors is an integer number (30789203550120).

Almost surely, 2^{205251052616215} is an apocalyptic number.

205251052616215 is a deficient number, since it is larger than the sum of its proper divisors (41062575784745).

205251052616215 is a wasteful number, since it uses less digits than its factorization.

205251052616215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060876921.

The product of its (nonzero) digits is 360000, while the sum is 43.

The spelling of 205251052616215 in words is "two hundred five trillion, two hundred fifty-one billion, fifty-two million, six hundred sixteen thousand, two hundred fifteen".