204747165049 has 16 divisors (see below), whose sum is σ = 236864590848. Its totient is φ = 173356155792.

The previous prime is 204747165041. The next prime is 204747165101. The reversal of 204747165049 is 940561747402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 204747165049 - 2³ = 204747165041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204747164993 and 204747165011.

It is not an unprimeable number, because it can be changed into a prime (204747165041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133989 + ... + 653794.

It is an arithmetic number, because the mean of its divisors is an integer number (14804036928).

Almost surely, 2^204747165049 is an apocalyptic number.

It is an amenable number.

204747165049 is a deficient number, since it is larger than the sum of its proper divisors (32117425799).

204747165049 is a wasteful number, since it uses less digits than its factorization.

204747165049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788244.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 204747165049 in words is "two hundred four billion, seven hundred forty-seven million, one hundred sixty-five thousand, forty-nine".