10545661223171 has 2 divisors, whose sum is σ = 10545661223172. Its totient is φ = 10545661223170.

The previous prime is 10545661223143. The next prime is 10545661223183. The reversal of 10545661223171 is 17132216654501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10545661223171 - 2¹⁸ = 10545660961027 is a prime.

It is a super-2 number, since 2×10545661223171² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10545661223191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5272830611585 + 5272830611586.

It is an arithmetic number, because the mean of its divisors is an integer number (5272830611586).

Almost surely, 2^{10545661223171} is an apocalyptic number.

10545661223171 is a deficient number, since it is larger than the sum of its proper divisors (1).

10545661223171 is an equidigital number, since it uses as much as digits as its factorization.

10545661223171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

Adding to 10545661223171 its reverse (17132216654501), we get a palindrome (27677877877672).

The spelling of 10545661223171 in words is "ten trillion, five hundred forty-five billion, six hundred sixty-one million, two hundred twenty-three thousand, one hundred seventy-one".