11040346665 has 24 divisors (see below), whose sum is σ = 19753913088. Its totient is φ = 5698242720.

The previous prime is 11040346607. The next prime is 11040346673. The reversal of 11040346665 is 56664304011.

It is a happy number.

It is not a de Polignac number, because 11040346665 - 2¹⁵ = 11040313897 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3955719 + ... + 3958508.

It is an arithmetic number, because the mean of its divisors is an integer number (823079712).

Almost surely, 2^11040346665 is an apocalyptic number.

11040346665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11040346665 is a deficient number, since it is larger than the sum of its proper divisors (8713566423).

11040346665 is a wasteful number, since it uses less digits than its factorization.

11040346665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7914269 (or 7914266 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 11040346665 in words is "eleven billion, forty million, three hundred forty-six thousand, six hundred sixty-five".