204680515856 has 20 divisors (see below), whose sum is σ = 398076372672. Its totient is φ = 101951129376.

The previous prime is 204680515843. The next prime is 204680515909. The reversal of 204680515856 is 658515086402.

204680515856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204680515856² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24316196 + ... + 24324611.

Almost surely, 2^204680515856 is an apocalyptic number.

It is an amenable number.

204680515856 is a deficient number, since it is larger than the sum of its proper divisors (193395856816).

204680515856 is a wasteful number, since it uses less digits than its factorization.

204680515856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48641078 (or 48641072 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 204680515856 in words is "two hundred four billion, six hundred eighty million, five hundred fifteen thousand, eight hundred fifty-six".