11565024228 has 18 divisors (see below), whose sum is σ = 29233811334. Its totient is φ = 3855008064.

The previous prime is 11565024217. The next prime is 11565024239. The reversal of 11565024228 is 82242056511.

It is an interprime number because it is at equal distance from previous prime (11565024217) and next prime (11565024239).

It can be written as a sum of positive squares in only one way, i.e., 11519299584 + 45724644 = 107328^2 + 6762^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 321250673 = 11565024228 / (1 + 1 + 5 + 6 + 5 + 0 + 2 + 4 + 2 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 11565024192 and 11565024201.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160625301 + ... + 160625372.

Almost surely, 2^11565024228 is an apocalyptic number.

11565024228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11565024228 is an abundant number, since it is smaller than the sum of its proper divisors (17668787106).

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

11565024228 is a wasteful number, since it uses less digits than its factorization.

11565024228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321250683 (or 321250678 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 11565024228 in words is "eleven billion, five hundred sixty-five million, twenty-four thousand, two hundred twenty-eight".