205323323021504 has 28 divisors (see below), whose sum is σ = 407752608429144. Its totient is φ = 102582508299264.

The previous prime is 205323323021471. The next prime is 205323323021573. The reversal of 205323323021504 is 405120323323502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236685274 + ... + 1236851289.

Almost surely, 2^{205323323021504} is an apocalyptic number.

It is an amenable number.

205323323021504 is a deficient number, since it is larger than the sum of its proper divisors (202429285407640).

205323323021504 is a wasteful number, since it uses less digits than its factorization.

205323323021504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473537872 (or 2473537862 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

The spelling of 205323323021504 in words is "two hundred five trillion, three hundred twenty-three billion, three hundred twenty-three million, twenty-one thousand, five hundred four".