11565072 has 80 divisors (see below), whose sum is σ = 34968000. Its totient is φ = 3649536.

The previous prime is 11565061. The next prime is 11565079. The reversal of 11565072 is 27056511.

11565072 is a `hidden beast` number, since 1 + 1 + 5 + 650 + 7 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (11565079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7504 + ... + 8912.

It is an arithmetic number, because the mean of its divisors is an integer number (437100).

Almost surely, 2^11565072 is an apocalyptic number.

11565072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11565072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17484000).

11565072 is an abundant number, since it is smaller than the sum of its proper divisors (23402928).

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

11565072 is a wasteful number, since it uses less digits than its factorization.

11565072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 11565072 is about 3400.7458005561. The cubic root of 11565072 is about 226.1428079064.

The spelling of 11565072 in words is "eleven million, five hundred sixty-five thousand, seventy-two".