11545506945424 has 15 divisors (see below), whose sum is σ = 22369446040267. Its totient is φ = 5772746676976.

The previous prime is 11545506945407. The next prime is 11545506945433. The reversal of 11545506945424 is 42454960554511.

The square root of 11545506945424 is 3397868.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13166739 + ... + 14016205.

Almost surely, 2^{11545506945424} is an apocalyptic number.

11545506945424 is the 3397868-th square number.

It is an amenable number.

11545506945424 is a deficient number, since it is larger than the sum of its proper divisors (10823939094843).

11545506945424 is an frugal number, since it uses more digits than its factorization.

11545506945424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698942 (or 849469 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 55.

The spelling of 11545506945424 in words is "eleven trillion, five hundred forty-five billion, five hundred six million, nine hundred forty-five thousand, four hundred twenty-four".