205301405465255 has 16 divisors (see below), whose sum is σ = 268768671436800. Its totient is φ = 149304297555360.

The previous prime is 205301405465207. The next prime is 205301405465309. The reversal of 205301405465255 is 552564504103502.

It is a de Polignac number, because none of the positive numbers 2^k-205301405465255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71268695 + ... + 74093384.

It is an arithmetic number, because the mean of its divisors is an integer number (16798041964800).

Almost surely, 2^{205301405465255} is an apocalyptic number.

205301405465255 is a deficient number, since it is larger than the sum of its proper divisors (63467265971545).

205301405465255 is a wasteful number, since it uses less digits than its factorization.

205301405465255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145387774.

The product of its (nonzero) digits is 3600000, while the sum is 47.

Adding to 205301405465255 its reverse (552564504103502), we get a palindrome (757865909568757).

The spelling of 205301405465255 in words is "two hundred five trillion, three hundred one billion, four hundred five million, four hundred sixty-five thousand, two hundred fifty-five".