13269352720 has 160 divisors (see below), whose sum is σ = 35394922080. Its totient is φ = 4610211840.

The previous prime is 13269352711. The next prime is 13269352751. The reversal of 13269352720 is 2725396231.

It can be written as a sum of positive squares in 16 ways, for example, as 12644552704 + 624800016 = 112448^2 + 24996^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2985700 + ... + 2990140.

It is an arithmetic number, because the mean of its divisors is an integer number (221218263).

Almost surely, 2^13269352720 is an apocalyptic number.

13269352720 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 13269352720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17697461040).

13269352720 is an abundant number, since it is smaller than the sum of its proper divisors (22125569360).

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

13269352720 is a wasteful number, since it uses less digits than its factorization.

13269352720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510 (or 4478 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 13269352720 in words is "thirteen billion, two hundred sixty-nine million, three hundred fifty-two thousand, seven hundred twenty".