101070216661 has 2 divisors, whose sum is σ = 101070216662. Its totient is φ = 101070216660.

The previous prime is 101070216641. The next prime is 101070216697. The reversal of 101070216661 is 166612070101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93899344900 + 7170871761 = 306430^2 + 84681^2 .

It is a cyclic number.

It is not a de Polignac number, because 101070216661 - 2²⁵ = 101036662229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101070216641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50535108330 + 50535108331.

It is an arithmetic number, because the mean of its divisors is an integer number (50535108331).

Almost surely, 2^101070216661 is an apocalyptic number.

It is an amenable number.

101070216661 is a deficient number, since it is larger than the sum of its proper divisors (1).

101070216661 is an equidigital number, since it uses as much as digits as its factorization.

101070216661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 101070216661 its reverse (166612070101), we get a palindrome (267682286762).

The spelling of 101070216661 in words is "one hundred one billion, seventy million, two hundred sixteen thousand, six hundred sixty-one".