205353234350505 has 64 divisors (see below), whose sum is σ = 365219373899520. Its totient is φ = 109477645175808.

The previous prime is 205353234350503. The next prime is 205353234350549. The reversal of 205353234350505 is 505053432353502.

205353234350505 is a `hidden beast` number, since 2 + 0 + 5 + 3 + 53 + 2 + 3 + 43 + 50 + 505 = 666.

It is not a de Polignac number, because 205353234350505 - 2¹ = 205353234350503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (205353234350503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5884535217 + ... + 5884570113.

It is an arithmetic number, because the mean of its divisors is an integer number (5706552717180).

Almost surely, 2^{205353234350505} is an apocalyptic number.

It is an amenable number.

205353234350505 is a deficient number, since it is larger than the sum of its proper divisors (159866139549015).

205353234350505 is a wasteful number, since it uses less digits than its factorization.

205353234350505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51207 (or 51201 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 45.

The spelling of 205353234350505 in words is "two hundred five trillion, three hundred fifty-three billion, two hundred thirty-four million, three hundred fifty thousand, five hundred five".