13345603645 has 12 divisors (see below), whose sum is σ = 17602962300. Its totient is φ = 9705893120.

The previous prime is 13345603639. The next prime is 13345603751. The reversal of 13345603645 is 54630654331.

It can be written as a sum of positive squares in 2 ways, for example, as 3066279876 + 10279323769 = 55374^2 + 101387^2 .

It is not a de Polignac number, because 13345603645 - 2³ = 13345603637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13345603598 and 13345603607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11028820 + ... + 11030029.

It is an arithmetic number, because the mean of its divisors is an integer number (1466913525).

Almost surely, 2^13345603645 is an apocalyptic number.

It is an amenable number.

13345603645 is a deficient number, since it is larger than the sum of its proper divisors (4257358655).

13345603645 is a wasteful number, since it uses less digits than its factorization.

13345603645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22058876 (or 22058865 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 13345603645 in words is "thirteen billion, three hundred forty-five million, six hundred three thousand, six hundred forty-five".