13645065345 has 16 divisors (see below), whose sum is σ = 21842706240. Its totient is φ = 7273834304.

The previous prime is 13645065341. The next prime is 13645065361. The reversal of 13645065345 is 54356054631.

It is a cyclic number.

It is not a de Polignac number, because 13645065345 - 2² = 13645065341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13645065297 and 13645065306.

It is not an unprimeable number, because it can be changed into a prime (13645065341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188799 + ... + 250868.

It is an arithmetic number, because the mean of its divisors is an integer number (1365169140).

Almost surely, 2^13645065345 is an apocalyptic number.

13645065345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13645065345 is a deficient number, since it is larger than the sum of its proper divisors (8197640895).

13645065345 is a wasteful number, since it uses less digits than its factorization.

13645065345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441744.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 13645065345 in words is "thirteen billion, six hundred forty-five million, sixty-five thousand, three hundred forty-five".