11661264 has 60 divisors (see below), whose sum is σ = 33349056. Its totient is φ = 3802176.

The previous prime is 11661259. The next prime is 11661271. The reversal of 11661264 is 46216611.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5907 + ... + 7629.

Almost surely, 2^11661264 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 11661264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16674528).

11661264 is an abundant number, since it is smaller than the sum of its proper divisors (21687792).

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

11661264 is a wasteful number, since it uses less digits than its factorization.

11661264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1775 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 11661264 is about 3414.8592943195. The cubic root of 11661264 is about 226.7680553722.

Adding to 11661264 its reverse (46216611), we get a palindrome (57877875).

The spelling of 11661264 in words is "eleven million, six hundred sixty-one thousand, two hundred sixty-four".