11660166165 has 64 divisors (see below), whose sum is σ = 19735879680. Its totient is φ = 5872124160.

The previous prime is 11660166163. The next prime is 11660166169. The reversal of 11660166165 is 56166106611.

It is not a de Polignac number, because 11660166165 - 2¹ = 11660166163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660166163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2318844 + ... + 2323866.

It is an arithmetic number, because the mean of its divisors is an integer number (308373120).

Almost surely, 2^11660166165 is an apocalyptic number.

11660166165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11660166165 is a deficient number, since it is larger than the sum of its proper divisors (8075713515).

11660166165 is a wasteful number, since it uses less digits than its factorization.

11660166165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 11660166165 in words is "eleven billion, six hundred sixty million, one hundred sixty-six thousand, one hundred sixty-five".