13356719856 has 200 divisors, whose sum is σ = 40016568240. Its totient is φ = 4298241024.

The previous prime is 13356719839. The next prime is 13356719867. The reversal of 13356719856 is 65891765331.

13356719856 is a `hidden beast` number, since 13 + 3 + 567 + 19 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 4958446 + ... + 4961138.

Almost surely, 2^13356719856 is an apocalyptic number.

13356719856 is a gapful number since it is divisible by the number (16) 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 13356719856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20008284120).

13356719856 is an abundant number, since it is smaller than the sum of its proper divisors (26659848384).

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

13356719856 is a wasteful number, since it uses less digits than its factorization.

13356719856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845 (or 2830 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 13356719856 in words is "thirteen billion, three hundred fifty-six million, seven hundred nineteen thousand, eight hundred fifty-six".