1306901667217 has 2 divisors, whose sum is σ = 1306901667218. Its totient is φ = 1306901667216.

The previous prime is 1306901667173. The next prime is 1306901667251. The reversal of 1306901667217 is 7127661096031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1299654720576 + 7246946641 = 1140024^2 + 85129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306901667217 - 2²³ = 1306893278609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1306901664217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653450833608 + 653450833609.

It is an arithmetic number, because the mean of its divisors is an integer number (653450833609).

Almost surely, 2^{1306901667217} is an apocalyptic number.

It is an amenable number.

1306901667217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306901667217 is an equidigital number, since it uses as much as digits as its factorization.

1306901667217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 1306901667217 in words is "one trillion, three hundred six billion, nine hundred one million, six hundred sixty-seven thousand, two hundred seventeen".