1316561542288 has 160 divisors (see below), whose sum is σ = 2819705241600. Its totient is φ = 593083814400.

The previous prime is 1316561542271. The next prime is 1316561542297. The reversal of 1316561542288 is 8822451656131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173433373 + ... + 173440963.

It is an arithmetic number, because the mean of its divisors is an integer number (17623157760).

Almost surely, 2^{1316561542288} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316561542288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409852620800).

1316561542288 is an abundant number, since it is smaller than the sum of its proper divisors (1503143699312).

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

1316561542288 is a wasteful number, since it uses less digits than its factorization.

1316561542288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941 (or 7935 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The spelling of 1316561542288 in words is "one trillion, three hundred sixteen billion, five hundred sixty-one million, five hundred forty-two thousand, two hundred eighty-eight".