1316455929329 has 2 divisors, whose sum is σ = 1316455929330. Its totient is φ = 1316455929328.

The previous prime is 1316455929319. The next prime is 1316455929361. The reversal of 1316455929329 is 9239295546131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169475704929 + 146980224400 = 1081423^2 + 383380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1316455929329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1316455929319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658227964664 + 658227964665.

It is an arithmetic number, because the mean of its divisors is an integer number (658227964665).

Almost surely, 2^{1316455929329} is an apocalyptic number.

It is an amenable number.

1316455929329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316455929329 is an equidigital number, since it uses as much as digits as its factorization.

1316455929329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15746400, while the sum is 59.

The spelling of 1316455929329 in words is "one trillion, three hundred sixteen billion, four hundred fifty-five million, nine hundred twenty-nine thousand, three hundred twenty-nine".