11166515065 has 16 divisors (see below), whose sum is σ = 13989708288. Its totient is φ = 8540357056.

The previous prime is 11166515027. The next prime is 11166515077. The reversal of 11166515065 is 56051566111.

It is not a de Polignac number, because 11166515065 - 2¹³ = 11166506873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205344 + ... + 253966.

It is an arithmetic number, because the mean of its divisors is an integer number (874356768).

Almost surely, 2^11166515065 is an apocalyptic number.

It is an amenable number.

11166515065 is a deficient number, since it is larger than the sum of its proper divisors (2823193223).

11166515065 is a wasteful number, since it uses less digits than its factorization.

11166515065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50648.

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

The spelling of 11166515065 in words is "eleven billion, one hundred sixty-six million, five hundred fifteen thousand, sixty-five".