1316522208138 has 32 divisors (see below), whose sum is σ = 2842266844800. Its totient is φ = 405286195776.

The previous prime is 1316522208097. The next prime is 1316522208143. The reversal of 1316522208138 is 8318022256131.

It is a self number, because there is not a number n which added to its sum of digits gives 1316522208138.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164479033 + ... + 164487036.

It is an arithmetic number, because the mean of its divisors is an integer number (88820838900).

Almost surely, 2^{1316522208138} is an apocalyptic number.

1316522208138 is an abundant number, since it is smaller than the sum of its proper divisors (1525744636662).

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

1316522208138 is a wasteful number, since it uses less digits than its factorization.

1316522208138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328966126.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 1316522208138 in words is "one trillion, three hundred sixteen billion, five hundred twenty-two million, two hundred eight thousand, one hundred thirty-eight".