1316331620636 has 6 divisors (see below), whose sum is σ = 2303580336120. Its totient is φ = 658165810316.

The previous prime is 1316331620627. The next prime is 1316331620677. The reversal of 1316331620636 is 6360261336131.

It is a junction number, because it is equal to n+sod(n) for n = 1316331620593 and 1316331620602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164541452576 + ... + 164541452583.

It is an arithmetic number, because the mean of its divisors is an integer number (383930056020).

Almost surely, 2^{1316331620636} is an apocalyptic number.

It is an amenable number.

1316331620636 is a deficient number, since it is larger than the sum of its proper divisors (987248715484).

1316331620636 is a wasteful number, since it uses less digits than its factorization.

1316331620636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329082905163 (or 329082905161 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 41.

Adding to 1316331620636 its reverse (6360261336131), we get a palindrome (7676592956767).

The spelling of 1316331620636 in words is "one trillion, three hundred sixteen billion, three hundred thirty-one million, six hundred twenty thousand, six hundred thirty-six".