205230133460355 has 128 divisors (see below), whose sum is σ = 350355105644544. Its totient is φ = 102369294720000.

The previous prime is 205230133460333. The next prime is 205230133460369. The reversal of 205230133460355 is 553064331032502.

It is not a de Polignac number, because 205230133460355 - 2¹³ = 205230133452163 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1432469454 + ... + 1432612716.

It is an arithmetic number, because the mean of its divisors is an integer number (2737149262848).

Almost surely, 2^{205230133460355} is an apocalyptic number.

205230133460355 is a deficient number, since it is larger than the sum of its proper divisors (145124972184189).

205230133460355 is a wasteful number, since it uses less digits than its factorization.

205230133460355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143849.

The product of its (nonzero) digits is 972000, while the sum is 42.

Adding to 205230133460355 its reverse (553064331032502), we get a palindrome (758294464492857).

The spelling of 205230133460355 in words is "two hundred five trillion, two hundred thirty billion, one hundred thirty-three million, four hundred sixty thousand, three hundred fifty-five".