11066165515 has 4 divisors (see below), whose sum is σ = 13279398624. Its totient is φ = 8852932408.

The previous prime is 11066165503. The next prime is 11066165533. The reversal of 11066165515 is 51556166011.

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

It is a cyclic number.

It is not a de Polignac number, because 11066165515 - 2¹⁹ = 11065641227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106616547 + ... + 1106616556.

It is an arithmetic number, because the mean of its divisors is an integer number (3319849656).

Almost surely, 2^11066165515 is an apocalyptic number.

11066165515 is a deficient number, since it is larger than the sum of its proper divisors (2213233109).

11066165515 is an equidigital number, since it uses as much as digits as its factorization.

11066165515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213233108.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 11066165515 in words is "eleven billion, sixty-six million, one hundred sixty-five thousand, five hundred fifteen".