9060211661 has 2 divisors, whose sum is σ = 9060211662. Its totient is φ = 9060211660.

The previous prime is 9060211627. The next prime is 9060211673. The reversal of 9060211661 is 1661120609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7820749225 + 1239462436 = 88435^2 + 35206^2 .

It is a cyclic number.

It is not a de Polignac number, because 9060211661 - 2⁶ = 9060211597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9060211861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4530105830 + 4530105831.

It is an arithmetic number, because the mean of its divisors is an integer number (4530105831).

Almost surely, 2^9060211661 is an apocalyptic number.

It is an amenable number.

9060211661 is a deficient number, since it is larger than the sum of its proper divisors (1).

9060211661 is an equidigital number, since it uses as much as digits as its factorization.

9060211661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 9060211661 is about 95185.1441192374. The cubic root of 9060211661 is about 2084.7122315993.

The spelling of 9060211661 in words is "nine billion, sixty million, two hundred eleven thousand, six hundred sixty-one".