10646340217 has 2 divisors, whose sum is σ = 10646340218. Its totient is φ = 10646340216.

The previous prime is 10646340181. The next prime is 10646340233. The reversal of 10646340217 is 71204364601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6655133241 + 3991206976 = 81579^2 + 63176^2 .

It is an emirp because it is prime and its reverse (71204364601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10646340217 - 2²³ = 10637951609 is a prime.

It is a super-2 number, since 2×10646340217² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10646340517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5323170108 + 5323170109.

It is an arithmetic number, because the mean of its divisors is an integer number (5323170109).

Almost surely, 2^10646340217 is an apocalyptic number.

It is an amenable number.

10646340217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10646340217 is an equidigital number, since it uses as much as digits as its factorization.

10646340217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 10646340217 in words is "ten billion, six hundred forty-six million, three hundred forty thousand, two hundred seventeen".