204461322221351 has 4 divisors (see below), whose sum is σ = 220189116238392. Its totient is φ = 188733528204312.

The previous prime is 204461322221329. The next prime is 204461322221353. The reversal of 204461322221351 is 153122223164402.

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

It is not a de Polignac number, because 204461322221351 - 2³⁸ = 204186444314407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204461322221353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7863897008501 + ... + 7863897008526.

It is an arithmetic number, because the mean of its divisors is an integer number (55047279059598).

Almost surely, 2^{204461322221351} is an apocalyptic number.

204461322221351 is a deficient number, since it is larger than the sum of its proper divisors (15727794017041).

204461322221351 is a wasteful number, since it uses less digits than its factorization.

204461322221351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15727794017040.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 204461322221351 its reverse (153122223164402), we get a palindrome (357583545385753).

The spelling of 204461322221351 in words is "two hundred four trillion, four hundred sixty-one billion, three hundred twenty-two million, two hundred twenty-one thousand, three hundred fifty-one".