11545205352445 has 4 divisors (see below), whose sum is σ = 13854246422940. Its totient is φ = 9236164281952.

The previous prime is 11545205352377. The next prime is 11545205352497. The reversal of 11545205352445 is 54425350254511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7326100382329 + 4219104970116 = 2706677^2 + 2054046^2 .

It is a cyclic number.

It is not a de Polignac number, because 11545205352445 - 2³³ = 11536615417853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11545205352395 and 11545205352404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154520535240 + ... + 1154520535249.

It is an arithmetic number, because the mean of its divisors is an integer number (3463561605735).

Almost surely, 2^{11545205352445} is an apocalyptic number.

It is an amenable number.

11545205352445 is a deficient number, since it is larger than the sum of its proper divisors (2309041070495).

11545205352445 is an equidigital number, since it uses as much as digits as its factorization.

11545205352445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309041070494.

The product of its (nonzero) digits is 2400000, while the sum is 46.

The spelling of 11545205352445 in words is "eleven trillion, five hundred forty-five billion, two hundred five million, three hundred fifty-two thousand, four hundred forty-five".