11662056 has 96 divisors (see below), whose sum is σ = 37477440. Its totient is φ = 3328128.

The previous prime is 11662043. The next prime is 11662093. The reversal of 11662056 is 65026611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13180 + ... + 14036.

It is an arithmetic number, because the mean of its divisors is an integer number (390390).

Almost surely, 2^11662056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11662056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18738720).

11662056 is an abundant number, since it is smaller than the sum of its proper divisors (25815384).

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

11662056 is an equidigital number, since it uses as much as digits as its factorization.

11662056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 11662056 is about 3414.9752561329. The cubic root of 11662056 is about 226.7731890706.

Adding to 11662056 its reverse (65026611), we get a palindrome (76688667).

The spelling of 11662056 in words is "eleven million, six hundred sixty-two thousand, fifty-six".