13305340445 has 8 divisors (see below), whose sum is σ = 16905609144. Its totient is φ = 10018138624.

The previous prime is 13305340441. The next prime is 13305340471. The reversal of 13305340445 is 54404350331.

It can be written as a sum of positive squares in 4 ways, for example, as 2518233124 + 10787107321 = 50182^2 + 103861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13305340445 - 2² = 13305340441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13305340441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78266624 + ... + 78266793.

It is an arithmetic number, because the mean of its divisors is an integer number (2113201143).

Almost surely, 2^13305340445 is an apocalyptic number.

It is an amenable number.

13305340445 is a deficient number, since it is larger than the sum of its proper divisors (3600268699).

13305340445 is a wasteful number, since it uses less digits than its factorization.

13305340445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156533439.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 13305340445 its reverse (54404350331), we get a palindrome (67709690776).

The spelling of 13305340445 in words is "thirteen billion, three hundred five million, three hundred forty thousand, four hundred forty-five".