1306466221517 has 2 divisors, whose sum is σ = 1306466221518. Its totient is φ = 1306466221516.

The previous prime is 1306466221351. The next prime is 1306466221561. The reversal of 1306466221517 is 7151226646031.

It is an a-pointer prime, because the next prime (1306466221561) can be obtained adding 1306466221517 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1265053564516 + 41412657001 = 1124746^2 + 203501^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306466221517 - 2⁸ = 1306466221261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306466211517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653233110758 + 653233110759.

It is an arithmetic number, because the mean of its divisors is an integer number (653233110759).

Almost surely, 2^{1306466221517} is an apocalyptic number.

It is an amenable number.

1306466221517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306466221517 is an equidigital number, since it uses as much as digits as its factorization.

1306466221517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 1306466221517 in words is "one trillion, three hundred six billion, four hundred sixty-six million, two hundred twenty-one thousand, five hundred seventeen".