11157664 has 24 divisors (see below), whose sum is σ = 25105248. Its totient is φ = 4781760.

The previous prime is 11157623. The next prime is 11157673. The reversal of 11157664 is 46675111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24682 + ... + 25129.

It is an arithmetic number, because the mean of its divisors is an integer number (1046052).

Almost surely, 2^11157664 is an apocalyptic number.

11157664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11157664 is an abundant number, since it is smaller than the sum of its proper divisors (13947584).

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

11157664 is an equidigital number, since it uses as much as digits as its factorization.

11157664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49828 (or 49820 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 11157664 is about 3340.3089677453. The cubic root of 11157664 is about 223.4555228489.

It can be divided in two parts, 111 and 57664, that added together give a palindrome (57775).

The spelling of 11157664 in words is "eleven million, one hundred fifty-seven thousand, six hundred sixty-four".