10205711161 has 2 divisors, whose sum is σ = 10205711162. Its totient is φ = 10205711160.

The previous prime is 10205711107. The next prime is 10205711171. The reversal of 10205711161 is 16111750201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10205040400 + 670761 = 101020^2 + 819^2 .

It is an emirp because it is prime and its reverse (16111750201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10205711161 - 2⁹ = 10205710649 is a prime.

It is not a weakly prime, because it can be changed into another prime (10205711101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102855580 + 5102855581.

It is an arithmetic number, because the mean of its divisors is an integer number (5102855581).

Almost surely, 2^10205711161 is an apocalyptic number.

It is an amenable number.

10205711161 is a deficient number, since it is larger than the sum of its proper divisors (1).

10205711161 is an equidigital number, since it uses as much as digits as its factorization.

10205711161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 25.

The spelling of 10205711161 in words is "ten billion, two hundred five million, seven hundred eleven thousand, one hundred sixty-one".