204645442146611 has 2 divisors, whose sum is σ = 204645442146612. Its totient is φ = 204645442146610.

The previous prime is 204645442146539. The next prime is 204645442146641. The reversal of 204645442146611 is 116641244546402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204645442146611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204645442146611.

It is not a weakly prime, because it can be changed into another prime (204645442146641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102322721073305 + 102322721073306.

It is an arithmetic number, because the mean of its divisors is an integer number (102322721073306).

Almost surely, 2^{204645442146611} is an apocalyptic number.

204645442146611 is a deficient number, since it is larger than the sum of its proper divisors (1).

204645442146611 is an equidigital number, since it uses as much as digits as its factorization.

204645442146611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4423680, while the sum is 50.

The spelling of 204645442146611 in words is "two hundred four trillion, six hundred forty-five billion, four hundred forty-two million, one hundred forty-six thousand, six hundred eleven".