205617152201065 has 32 divisors (see below), whose sum is σ = 281025585292032. Its totient is φ = 142961156448000.

The previous prime is 205617152201063. The next prime is 205617152201093. The reversal of 205617152201065 is 560102251716502.

It is not a de Polignac number, because 205617152201065 - 2¹ = 205617152201063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205617152201063) 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, 41316766 + ... + 46025095.

It is an arithmetic number, because the mean of its divisors is an integer number (8782049540376).

Almost surely, 2^{205617152201065} is an apocalyptic number.

It is an amenable number.

205617152201065 is a deficient number, since it is larger than the sum of its proper divisors (75408433090967).

205617152201065 is a wasteful number, since it uses less digits than its factorization.

205617152201065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87343761.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 205617152201065 in words is "two hundred five trillion, six hundred seventeen billion, one hundred fifty-two million, two hundred one thousand, sixty-five".