204666061423 has 2 divisors, whose sum is σ = 204666061424. Its totient is φ = 204666061422.

The previous prime is 204666061399. The next prime is 204666061441. The reversal of 204666061423 is 324160666402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204666061423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204666061493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102333030711 + 102333030712.

It is an arithmetic number, because the mean of its divisors is an integer number (102333030712).

Almost surely, 2^204666061423 is an apocalyptic number.

204666061423 is a deficient number, since it is larger than the sum of its proper divisors (1).

204666061423 is an equidigital number, since it uses as much as digits as its factorization.

204666061423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 204666061423 in words is "two hundred four billion, six hundred sixty-six million, sixty-one thousand, four hundred twenty-three".