1316540220426 has 48 divisors (see below), whose sum is σ = 3062837613888. Its totient is φ = 407214864000.

The previous prime is 1316540220419. The next prime is 1316540220433. The reversal of 1316540220426 is 6240220456131.

1316540220426 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 5 + 4 + 0 + 220 + 426 = 666.

It is an interprime number because it is at equal distance from previous prime (1316540220419) and next prime (1316540220433).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30277000 + ... + 30320451.

It is an arithmetic number, because the mean of its divisors is an integer number (63809116956).

Almost surely, 2^{1316540220426} is an apocalyptic number.

1316540220426 is an abundant number, since it is smaller than the sum of its proper divisors (1746297393462).

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

1316540220426 is a wasteful number, since it uses less digits than its factorization.

1316540220426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60597547 (or 60597544 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 1316540220426 its reverse (6240220456131), we get a palindrome (7556760676557).

The spelling of 1316540220426 in words is "one trillion, three hundred sixteen billion, five hundred forty million, two hundred twenty thousand, four hundred twenty-six".