1316258953646 has 96 divisors (see below), whose sum is σ = 2565997253568. Its totient is φ = 493051276800.

The previous prime is 1316258953621. The next prime is 1316258953739. The reversal of 1316258953646 is 6463598526131.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 162476996 + ... + 162485096.

It is an arithmetic number, because the mean of its divisors is an integer number (26729138058).

Almost surely, 2^{1316258953646} is an apocalyptic number.

1316258953646 is a deficient number, since it is larger than the sum of its proper divisors (1249738299922).

1316258953646 is a wasteful number, since it uses less digits than its factorization.

1316258953646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634 (or 10615 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 59.

The spelling of 1316258953646 in words is "one trillion, three hundred sixteen billion, two hundred fifty-eight million, nine hundred fifty-three thousand, six hundred forty-six".