17360061421 has 2 divisors, whose sum is σ = 17360061422. Its totient is φ = 17360061420.

The previous prime is 17360061347. The next prime is 17360061451. The reversal of 17360061421 is 12416006371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13427015625 + 3933045796 = 115875^2 + 62714^2 .

It is a cyclic number.

It is not a de Polignac number, because 17360061421 - 2⁹ = 17360060909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17360061451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8680030710 + 8680030711.

It is an arithmetic number, because the mean of its divisors is an integer number (8680030711).

Almost surely, 2^17360061421 is an apocalyptic number.

It is an amenable number.

17360061421 is a deficient number, since it is larger than the sum of its proper divisors (1).

17360061421 is an equidigital number, since it uses as much as digits as its factorization.

17360061421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 17360061421 its reverse (12416006371), we get a palindrome (29776067792).

The spelling of 17360061421 in words is "seventeen billion, three hundred sixty million, sixty-one thousand, four hundred twenty-one".