204500400179 has 2 divisors, whose sum is σ = 204500400180. Its totient is φ = 204500400178.

The previous prime is 204500400161. The next prime is 204500400211. The reversal of 204500400179 is 971004005402.

It is a happy number.

It is an a-pointer prime, because the next prime (204500400211) can be obtained adding 204500400179 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204500400179 - 2²⁰ = 204499351603 is a prime.

It is a super-2 number, since 2×204500400179² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204500400079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102250200089 + 102250200090.

It is an arithmetic number, because the mean of its divisors is an integer number (102250200090).

Almost surely, 2^204500400179 is an apocalyptic number.

204500400179 is a deficient number, since it is larger than the sum of its proper divisors (1).

204500400179 is an equidigital number, since it uses as much as digits as its factorization.

204500400179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 204500400179 in words is "two hundred four billion, five hundred million, four hundred thousand, one hundred seventy-nine".