204716307157 has 4 divisors (see below), whose sum is σ = 207771774496. Its totient is φ = 201660839820.

The previous prime is 204716307143. The next prime is 204716307163. The reversal of 204716307157 is 751703617402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204716307157 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 (204716307137) 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, 1527733569 + ... + 1527733702.

It is an arithmetic number, because the mean of its divisors is an integer number (51942943624).

Almost surely, 2^204716307157 is an apocalyptic number.

It is an amenable number.

204716307157 is a deficient number, since it is larger than the sum of its proper divisors (3055467339).

204716307157 is an equidigital number, since it uses as much as digits as its factorization.

204716307157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055467338.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 204716307157 in words is "two hundred four billion, seven hundred sixteen million, three hundred seven thousand, one hundred fifty-seven".