205256012601424 has 40 divisors (see below), whose sum is σ = 399533618658240. Its totient is φ = 102151168155648.

The previous prime is 205256012601421. The next prime is 205256012601457. The reversal of 205256012601424 is 424106210652502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205256012601421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13498314 + ... + 24345769.

It is an arithmetic number, because the mean of its divisors is an integer number (9988340466456).

Almost surely, 2^{205256012601424} is an apocalyptic number.

It is an amenable number.

205256012601424 is a deficient number, since it is larger than the sum of its proper divisors (194277606056816).

205256012601424 is a wasteful number, since it uses less digits than its factorization.

205256012601424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37845667 (or 37845661 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 205256012601424 in words is "two hundred five trillion, two hundred fifty-six billion, twelve million, six hundred one thousand, four hundred twenty-four".