204747165101 has 2 divisors, whose sum is σ = 204747165102. Its totient is φ = 204747165100.

The previous prime is 204747165041. The next prime is 204747165107. The reversal of 204747165101 is 101561747402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204349202500 + 397962601 = 452050^2 + 19949^2 .

It is a cyclic number.

It is not a de Polignac number, because 204747165101 - 2¹⁴ = 204747148717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204747165107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102373582550 + 102373582551.

It is an arithmetic number, because the mean of its divisors is an integer number (102373582551).

Almost surely, 2^204747165101 is an apocalyptic number.

It is an amenable number.

204747165101 is a deficient number, since it is larger than the sum of its proper divisors (1).

204747165101 is an equidigital number, since it uses as much as digits as its factorization.

204747165101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 204747165101 in words is "two hundred four billion, seven hundred forty-seven million, one hundred sixty-five thousand, one hundred one".