11165180 has 24 divisors (see below), whose sum is σ = 25251072. Its totient is φ = 4122432.

The previous prime is 11165171. The next prime is 11165221. The reversal of 11165180 is 8156111.

It is a happy number.

It is a super-2 number, since 2×11165180² = 249322488864800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21212 + ... + 21731.

It is an arithmetic number, because the mean of its divisors is an integer number (1052128).

Almost surely, 2^11165180 is an apocalyptic number.

11165180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11165180 is an abundant number, since it is smaller than the sum of its proper divisors (14085892).

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

11165180 is a wasteful number, since it uses less digits than its factorization.

11165180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42965 (or 42963 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 11165180 is about 3341.4338239744. The cubic root of 11165180 is about 223.5056861191.

The spelling of 11165180 in words is "eleven million, one hundred sixty-five thousand, one hundred eighty".