1316543401643 has 8 divisors (see below), whose sum is σ = 1321678493376. Its totient is φ = 1311410347200.

The previous prime is 1316543401577. The next prime is 1316543401711. The reversal of 1316543401643 is 3461043456131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1316543401643 - 2¹⁰ = 1316543400619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1316543401643.

It is not an unprimeable number, because it can be changed into a prime (1316543401543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792113 + ... + 1805693.

It is an arithmetic number, because the mean of its divisors is an integer number (165209811672).

Almost surely, 2^{1316543401643} is an apocalyptic number.

1316543401643 is a deficient number, since it is larger than the sum of its proper divisors (5135091733).

1316543401643 is a wasteful number, since it uses less digits than its factorization.

1316543401643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018645.

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 1316543401643 its reverse (3461043456131), we get a palindrome (4777586857774).

The spelling of 1316543401643 in words is "one trillion, three hundred sixteen billion, five hundred forty-three million, four hundred one thousand, six hundred forty-three".