11165656 has 16 divisors (see below), whose sum is σ = 20971440. Its totient is φ = 5573280.

The previous prime is 11165639. The next prime is 11165657. The reversal of 11165656 is 65656111.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11165657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7485 + ... + 8851.

It is an arithmetic number, because the mean of its divisors is an integer number (1310715).

Almost surely, 2^11165656 is an apocalyptic number.

It is an amenable number.

11165656 is a deficient number, since it is larger than the sum of its proper divisors (9805784).

11165656 is a wasteful number, since it uses less digits than its factorization.

11165656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394 (or 2390 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 11165656 is about 3341.5050501234. The cubic root of 11165656 is about 223.5088622791.

The spelling of 11165656 in words is "eleven million, one hundred sixty-five thousand, six hundred fifty-six".