1316631422546 has 12 divisors (see below), whose sum is σ = 2170809659886. Its totient is φ = 598468828320.

The previous prime is 1316631422507. The next prime is 1316631422599. The reversal of 1316631422546 is 6452241366131.

It can be written as a sum of positive squares in only one way, i.e., 1303682120521 + 12949302025 = 1141789^2 + 113795^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1316631422497 and 1316631422506.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2720312615 + ... + 2720313098.

Almost surely, 2^{1316631422546} is an apocalyptic number.

1316631422546 is a deficient number, since it is larger than the sum of its proper divisors (854178237340).

1316631422546 is a wasteful number, since it uses less digits than its factorization.

1316631422546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440625737 (or 5440625726 counting only the distinct ones).

The product of its digits is 622080, while the sum is 44.

Adding to 1316631422546 its reverse (6452241366131), we get a palindrome (7768872788677).

The spelling of 1316631422546 in words is "one trillion, three hundred sixteen billion, six hundred thirty-one million, four hundred twenty-two thousand, five hundred forty-six".