11165620 has 24 divisors (see below), whose sum is σ = 23595264. Its totient is φ = 4438176.

The previous prime is 11165591. The next prime is 11165621. The reversal of 11165620 is 2656111.

It is a junction number, because it is equal to n+sod(n) for n = 11165591 and 11165600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11165621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (983136).

Almost surely, 2^11165620 is an apocalyptic number.

11165620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11165620 is an abundant number, since it is smaller than the sum of its proper divisors (12429644).

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

11165620 is a wasteful number, since it uses less digits than its factorization.

11165620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519 (or 3517 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11165620 is about 3341.4996633248. The cubic root of 11165620 is about 223.5086220684.

The spelling of 11165620 in words is "eleven million, one hundred sixty-five thousand, six hundred twenty".