204200642606 has 4 divisors (see below), whose sum is σ = 306300963912. Its totient is φ = 102100321302.

The previous prime is 204200642587. The next prime is 204200642651. The reversal of 204200642606 is 606246002402.

204200642606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 51050160650 + ... + 51050160653.

It is an arithmetic number, because the mean of its divisors is an integer number (76575240978).

Almost surely, 2^204200642606 is an apocalyptic number.

204200642606 is a deficient number, since it is larger than the sum of its proper divisors (102100321306).

204200642606 is a wasteful number, since it uses less digits than its factorization.

204200642606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102100321305.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 204200642606 in words is "two hundred four billion, two hundred million, six hundred forty-two thousand, six hundred six".