1356163521544 has 32 divisors (see below), whose sum is σ = 2738494022040. Its totient is φ = 625901760000.

The previous prime is 1356163521539. The next prime is 1356163521547. The reversal of 1356163521544 is 4451253616531.

It can be written as a sum of positive squares in 4 ways, for example, as 680397319044 + 675766202500 = 824862^2 + 822050^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1356163521494 and 1356163521503.

It is not an unprimeable number, because it can be changed into a prime (1356163521547) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3383794 + ... + 3763294.

Almost surely, 2^{1356163521544} is an apocalyptic number.

It is an amenable number.

1356163521544 is an abundant number, since it is smaller than the sum of its proper divisors (1382330500496).

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

1356163521544 is a wasteful number, since it uses less digits than its factorization.

1356163521544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413881 (or 413877 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 46.

It can be divided in two parts, 135616 and 3521544, that added together give a triangular number (3657160 = T₂₇₀₄).

The spelling of 1356163521544 in words is "one trillion, three hundred fifty-six billion, one hundred sixty-three million, five hundred twenty-one thousand, five hundred forty-four".