11171660 has 12 divisors (see below), whose sum is σ = 23460528. Its totient is φ = 4468656.

The previous prime is 11171659. The next prime is 11171663. The reversal of 11171660 is 6617111.

It is not an unprimeable number, because it can be changed into a prime (11171663) 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, 279272 + ... + 279311.

It is an arithmetic number, because the mean of its divisors is an integer number (1955044).

Almost surely, 2^11171660 is an apocalyptic number.

11171660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11171660 is an abundant number, since it is smaller than the sum of its proper divisors (12288868).

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

11171660 is a wasteful number, since it uses less digits than its factorization.

11171660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558592 (or 558590 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 11171660 is about 3342.4033269490. The cubic root of 11171660 is about 223.5489168521.

Adding to 11171660 its reverse (6617111), we get a palindrome (17788771).

The spelling of 11171660 in words is "eleven million, one hundred seventy-one thousand, six hundred sixty".