11550964566241 has 3 divisors (see below), whose sum is σ = 11550967964913. Its totient is φ = 11550961167570.

The previous prime is 11550964566199. The next prime is 11550964566257. The reversal of 11550964566241 is 14266546905511.

The square root of 11550964566241 is 3398671.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-11550964566241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11550964546241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1699336 + ... + 5098006.

It is an arithmetic number, because the mean of its divisors is an integer number (3850322654971).

Almost surely, 2^{11550964566241} is an apocalyptic number.

11550964566241 is the 3398671-st square number.

11550964566241 is the 1699336-th centered octagonal number.

It is an amenable number.

11550964566241 is a deficient number, since it is larger than the sum of its proper divisors (3398672).

11550964566241 is an frugal number, since it uses more digits than its factorization.

11550964566241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6797342 (or 3398671 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 55.

The spelling of 11550964566241 in words is "eleven trillion, five hundred fifty billion, nine hundred sixty-four million, five hundred sixty-six thousand, two hundred forty-one".