11640016 has 10 divisors (see below), whose sum is σ = 22552562. Its totient is φ = 5820000.

The previous prime is 11640007. The next prime is 11640061. The reversal of 11640016 is 61004611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11155600 + 484416 = 3340^2 + 696^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11639975 and 11640002.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 363735 + ... + 363766.

Almost surely, 2^11640016 is an apocalyptic number.

11640016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11640016 is a deficient number, since it is larger than the sum of its proper divisors (10912546).

11640016 is an equidigital number, since it uses as much as digits as its factorization.

11640016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727509 (or 727503 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11640016 is about 3411.7467666871. The cubic root of 11640016 is about 226.6302402056.

Adding to 11640016 its reverse (61004611), we get a palindrome (72644627).

The spelling of 11640016 in words is "eleven million, six hundred forty thousand, sixteen".