13665703752 has 96 divisors (see below), whose sum is σ = 39274915680. Its totient is φ = 4449271680.

The previous prime is 13665703747. The next prime is 13665703757. The reversal of 13665703752 is 25730756631.

13665703752 is a `hidden beast` number, since 1 + 3 + 6 + 6 + 570 + 3 + 75 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (13665703747) and next prime (13665703757).

It is a junction number, because it is equal to n+sod(n) for n = 13665703698 and 13665703707.

It is not an unprimeable number, because it can be changed into a prime (13665703757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1852 + ... + 165332.

It is an arithmetic number, because the mean of its divisors is an integer number (409113705).

Almost surely, 2^13665703752 is an apocalyptic number.

13665703752 is a gapful number since it is divisible by the number (12) 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 13665703752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19637457840).

13665703752 is an abundant number, since it is smaller than the sum of its proper divisors (25609211928).

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

13665703752 is a wasteful number, since it uses less digits than its factorization.

13665703752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163545 (or 163529 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 45.

The spelling of 13665703752 in words is "thirteen billion, six hundred sixty-five million, seven hundred three thousand, seven hundred fifty-two".