561700061171 has 2 divisors, whose sum is σ = 561700061172. Its totient is φ = 561700061170.

The previous prime is 561700061137. The next prime is 561700061249. The reversal of 561700061171 is 171160007165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 561700061171 - 2⁶ = 561700061107 is a prime.

It is not a weakly prime, because it can be changed into another prime (561700061771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280850030585 + 280850030586.

It is an arithmetic number, because the mean of its divisors is an integer number (280850030586).

Almost surely, 2^561700061171 is an apocalyptic number.

561700061171 is a deficient number, since it is larger than the sum of its proper divisors (1).

561700061171 is an equidigital number, since it uses as much as digits as its factorization.

561700061171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 35.

The spelling of 561700061171 in words is "five hundred sixty-one billion, seven hundred million, sixty-one thousand, one hundred seventy-one".