205355602216 has 16 divisors (see below), whose sum is σ = 385048034100. Its totient is φ = 102676126464.

The previous prime is 205355602201. The next prime is 205355602241. The reversal of 205355602216 is 612206553502.

It can be written as a sum of positive squares in 2 ways, for example, as 145748332900 + 59607269316 = 381770^2 + 244146^2 .

It is a super-2 number, since 2×205355602216² (a number of 23 digits) contains 22 as substring.

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, 424846 + ... + 768898.

Almost surely, 2^205355602216 is an apocalyptic number.

It is an amenable number.

205355602216 is a deficient number, since it is larger than the sum of its proper divisors (179692431884).

205355602216 is a wasteful number, since it uses less digits than its factorization.

205355602216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418668 (or 418664 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 205355602216 in words is "two hundred five billion, three hundred fifty-five million, six hundred two thousand, two hundred sixteen".