205221250704 has 20 divisors (see below), whose sum is σ = 530154897776. Its totient is φ = 68407083552.

The previous prime is 205221250691. The next prime is 205221250727. The reversal of 205221250704 is 407052122502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137721314 + ... + 2137721409.

Almost surely, 2^205221250704 is an apocalyptic number.

205221250704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205221250704 is an abundant number, since it is smaller than the sum of its proper divisors (324933647072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205221250704 is a wasteful number, since it uses less digits than its factorization.

205221250704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275442734 (or 4275442728 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The spelling of 205221250704 in words is "two hundred five billion, two hundred twenty-one million, two hundred fifty thousand, seven hundred four".