204245450102 has 4 divisors (see below), whose sum is σ = 306368175156. Its totient is φ = 102122725050.

The previous prime is 204245450077. The next prime is 204245450113. The reversal of 204245450102 is 201054542402.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061362524 + ... + 51061362527.

It is an arithmetic number, because the mean of its divisors is an integer number (76592043789).

Almost surely, 2^204245450102 is an apocalyptic number.

204245450102 is a deficient number, since it is larger than the sum of its proper divisors (102122725054).

204245450102 is a wasteful number, since it uses less digits than its factorization.

204245450102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102122725053.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 204245450102 its reverse (201054542402), we get a palindrome (405299992504).

The spelling of 204245450102 in words is "two hundred four billion, two hundred forty-five million, four hundred fifty thousand, one hundred two".