1326868669560 has 768 divisors, whose sum is σ = 4827186524160. Its totient is φ = 290729779200.

The previous prime is 1326868669549. The next prime is 1326868669561. The reversal of 1326868669560 is 659668686231.

It is a junction number, because it is equal to n+sod(n) for n = 1326868669491 and 1326868669500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326868669561) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5694715204 + ... + 5694715436.

It is an arithmetic number, because the mean of its divisors is an integer number (6285399120).

Almost surely, 2^{1326868669560} is an apocalyptic number.

1326868669560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326868669560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2413593262080).

1326868669560 is an abundant number, since it is smaller than the sum of its proper divisors (3500317854600).

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

1326868669560 is a wasteful number, since it uses less digits than its factorization.

1326868669560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 134369280, while the sum is 66.

The spelling of 1326868669560 in words is "one trillion, three hundred twenty-six billion, eight hundred sixty-eight million, six hundred sixty-nine thousand, five hundred sixty".