11576945005081 has 9 divisors (see below), whose sum is σ = 11595712866591. Its totient is φ = 11558207487144.

The previous prime is 11576945005013. The next prime is 11576945005097. The reversal of 11576945005081 is 18050054967511.

The square root of 11576945005081 is 3402491.

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

It can be written as a sum of positive squares in only one way, i.e., 1544902329481 + 10032042675600 = 1242941^2 + 3167340^2 .

It is not a de Polignac number, because 11576945005081 - 2¹³ = 11576944996889 is a prime.

It is a super-2 number, since 2×11576945005081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11576945009081) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 2412363720 + ... + 2412368518.

Almost surely, 2^{11576945005081} is an apocalyptic number.

11576945005081 is the 3402491-st square number.

11576945005081 is the 1701246-th centered octagonal number.

It is an amenable number.

11576945005081 is a deficient number, since it is larger than the sum of its proper divisors (18767861510).

11576945005081 is an frugal number, since it uses more digits than its factorization.

11576945005081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11016 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 52.

The spelling of 11576945005081 in words is "eleven trillion, five hundred seventy-six billion, nine hundred forty-five million, five thousand, eighty-one".