11166645 has 16 divisors (see below), whose sum is σ = 20419200. Its totient is φ = 5104704.

The previous prime is 11166643. The next prime is 11166679. The reversal of 11166645 is 54666111.

It is not a de Polignac number, because 11166645 - 2¹ = 11166643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11166643) 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 15 ways as a sum of consecutive naturals, for example, 53070 + ... + 53279.

It is an arithmetic number, because the mean of its divisors is an integer number (1276200).

Almost surely, 2^11166645 is an apocalyptic number.

11166645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11166645 is a deficient number, since it is larger than the sum of its proper divisors (9252555).

11166645 is a wasteful number, since it uses less digits than its factorization.

11166645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106364.

The product of its digits is 4320, while the sum is 30.

The square root of 11166645 is about 3341.6530340537. The cubic root of 11166645 is about 223.5154611969.

It can be divided in two parts, 11166 and 645, that added together give a palindrome (11811).

The spelling of 11166645 in words is "eleven million, one hundred sixty-six thousand, six hundred forty-five".