204626666042 has 8 divisors (see below), whose sum is σ = 306953079636. Its totient is φ = 102308972832.

The previous prime is 204626666017. The next prime is 204626666063. The reversal of 204626666042 is 240666626402.

204626666042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 132082091761 + 72544574281 = 363431^2 + 269341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 204626665984 and 204626666002.

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, 2121113 + ... + 2215484.

Almost surely, 2^204626666042 is an apocalyptic number.

204626666042 is a deficient number, since it is larger than the sum of its proper divisors (102326413594).

204626666042 is a wasteful number, since it uses less digits than its factorization.

204626666042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360192.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 204626666042 in words is "two hundred four billion, six hundred twenty-six million, six hundred sixty-six thousand, forty-two".