11066365531 has 4 divisors (see below), whose sum is σ = 11917624432. Its totient is φ = 10215106632.

The previous prime is 11066365481. The next prime is 11066365549. The reversal of 11066365531 is 13556366011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13556366011 = 69929 ⋅193859.

It is a cyclic number.

It is not a de Polignac number, because 11066365531 - 2²⁷ = 10932147803 is a prime.

It is a super-2 number, since 2×11066365531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11066365591) 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 3 ways as a sum of consecutive naturals, for example, 425629431 + ... + 425629456.

It is an arithmetic number, because the mean of its divisors is an integer number (2979406108).

Almost surely, 2^11066365531 is an apocalyptic number.

11066365531 is a deficient number, since it is larger than the sum of its proper divisors (851258901).

11066365531 is an equidigital number, since it uses as much as digits as its factorization.

11066365531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851258900.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 11066365531 in words is "eleven billion, sixty-six million, three hundred sixty-five thousand, five hundred thirty-one".