1313266523760 has 400 divisors, whose sum is σ = 4643493734880. Its totient is φ = 343896606720.

The previous prime is 1313266523731. The next prime is 1313266523761. The reversal of 1313266523760 is 673256623131.

It is a happy number.

1313266523760 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 2 + 66 + 523 + 7 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313266523761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 665618134 + ... + 665620106.

Almost surely, 2^{1313266523760} is an apocalyptic number.

1313266523760 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 1313266523760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2321746867440).

1313266523760 is an abundant number, since it is smaller than the sum of its proper divisors (3330227211120).

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

1313266523760 is a wasteful number, since it uses less digits than its factorization.

1313266523760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798 (or 3783 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 1313266523760 in words is "one trillion, three hundred thirteen billion, two hundred sixty-six million, five hundred twenty-three thousand, seven hundred sixty".