13363316640 has 144 divisors (see below), whose sum is σ = 46834999848. Its totient is φ = 3467225088.

The previous prime is 13363316627. The next prime is 13363316663. The reversal of 13363316640 is 4661336331.

13363316640 is a `hidden beast` number, since 1 + 3 + 3 + 6 + 3 + 3 + 1 + 6 + 640 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13329164304 + 34152336 = 115452^2 + 5844^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13363316595 and 13363316604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72127 + ... + 178686.

Almost surely, 2^13363316640 is an apocalyptic number.

13363316640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13363316640 is an abundant number, since it is smaller than the sum of its proper divisors (33471683208).

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

13363316640 is a wasteful number, since it uses less digits than its factorization.

13363316640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250871 (or 250860 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The spelling of 13363316640 in words is "thirteen billion, three hundred sixty-three million, three hundred sixteen thousand, six hundred forty".