11201665 has 8 divisors (see below), whose sum is σ = 13459968. Its totient is φ = 8949360.

The previous prime is 11201653. The next prime is 11201669. The reversal of 11201665 is 56610211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11201665 - 2⁷ = 11201537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6594 + ... + 8116.

It is an arithmetic number, because the mean of its divisors is an integer number (1682496).

Almost surely, 2^11201665 is an apocalyptic number.

It is an amenable number.

11201665 is a deficient number, since it is larger than the sum of its proper divisors (2258303).

11201665 is a wasteful number, since it uses less digits than its factorization.

11201665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999.

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

The square root of 11201665 is about 3346.8888538462. Note that the first 4 decimals coincide. The cubic root of 11201665 is about 223.7488748734.

Adding to 11201665 its reverse (56610211), we get a palindrome (67811876).

The spelling of 11201665 in words is "eleven million, two hundred one thousand, six hundred sixty-five".