11405166 has 8 divisors (see below), whose sum is σ = 22810344. Its totient is φ = 3801720.

The previous prime is 11405153. The next prime is 11405167. The reversal of 11405166 is 66150411.

It is a sphenic number, since it is the product of 3 distinct primes.

11405166 is an admirable number.

It is a super-2 number, since 2×11405166² = 260155622975112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405167) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 950425 + ... + 950436.

It is an arithmetic number, because the mean of its divisors is an integer number (2851293).

Almost surely, 2^11405166 is an apocalyptic number.

11405166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11405166 is a wasteful number, since it uses less digits than its factorization.

11405166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900866.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 11405166 is about 3377.1535351535. The cubic root of 11405166 is about 225.0957024976.

Adding to 11405166 its reverse (66150411), we get a palindrome (77555577).

The spelling of 11405166 in words is "eleven million, four hundred five thousand, one hundred sixty-six".