1316565603652 has 144 divisors (see below), whose sum is σ = 2676937455360. Its totient is φ = 562997620224.

The previous prime is 1316565603643. The next prime is 1316565603677. The reversal of 1316565603652 is 2563065656131.

It is a junction number, because it is equal to n+sod(n) for n = 1316565603596 and 1316565603605.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158675568 + ... + 158683864.

It is an arithmetic number, because the mean of its divisors is an integer number (18589843440).

Almost surely, 2^{1316565603652} is an apocalyptic number.

It is an amenable number.

1316565603652 is an abundant number, since it is smaller than the sum of its proper divisors (1360371851708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316565603652 is a wasteful number, since it uses less digits than its factorization.

1316565603652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8538 (or 8517 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 1316565603652 in words is "one trillion, three hundred sixteen billion, five hundred sixty-five million, six hundred three thousand, six hundred fifty-two".