1316154605506 has 12 divisors (see below), whose sum is σ = 2137777747362. Its totient is φ = 607455971616.

The previous prime is 1316154605483. The next prime is 1316154605527. The reversal of 1316154605506 is 6055064516131.

It can be written as a sum of positive squares in 3 ways, for example, as 576322387281 + 739832218225 = 759159^2 + 860135^2 .

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 5 ways as a sum of consecutive naturals, for example, 1946973931 + ... + 1946974606.

Almost surely, 2^{1316154605506} is an apocalyptic number.

1316154605506 is a deficient number, since it is larger than the sum of its proper divisors (821623141856).

1316154605506 is a wasteful number, since it uses less digits than its factorization.

1316154605506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893948565 (or 3893948552 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 1316154605506 in words is "one trillion, three hundred sixteen billion, one hundred fifty-four million, six hundred five thousand, five hundred six".