205415554222 has 32 divisors (see below), whose sum is σ = 322373991744. Its totient is φ = 98095795200.

The previous prime is 205415554213. The next prime is 205415554247. The reversal of 205415554222 is 222455514502.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 463447 + ... + 790957.

It is an arithmetic number, because the mean of its divisors is an integer number (10074187242).

Almost surely, 2^205415554222 is an apocalyptic number.

205415554222 is a deficient number, since it is larger than the sum of its proper divisors (116958437522).

205415554222 is a wasteful number, since it uses less digits than its factorization.

205415554222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327724.

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 205415554222 in words is "two hundred five billion, four hundred fifteen million, five hundred fifty-four thousand, two hundred twenty-two".