266061101617 has 2 divisors, whose sum is σ = 266061101618. Its totient is φ = 266061101616.

The previous prime is 266061101543. The next prime is 266061101653. The reversal of 266061101617 is 716101160662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180624150001 + 85436951616 = 424999^2 + 292296^2 .

It is a cyclic number.

It is not a de Polignac number, because 266061101617 - 2²³ = 266052713009 is a prime.

It is not a weakly prime, because it can be changed into another prime (266061101417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133030550808 + 133030550809.

It is an arithmetic number, because the mean of its divisors is an integer number (133030550809).

Almost surely, 2^266061101617 is an apocalyptic number.

It is an amenable number.

266061101617 is a deficient number, since it is larger than the sum of its proper divisors (1).

266061101617 is an equidigital number, since it uses as much as digits as its factorization.

266061101617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 266061101617 in words is "two hundred sixty-six billion, sixty-one million, one hundred one thousand, six hundred seventeen".