11565170012452 has 48 divisors (see below), whose sum is σ = 23170811247360. Its totient is φ = 4947836544000.

The previous prime is 11565170012419. The next prime is 11565170012483. The reversal of 11565170012452 is 25421007156511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37055452 + ... + 37366252.

It is an arithmetic number, because the mean of its divisors is an integer number (482725234320).

Almost surely, 2^{11565170012452} is an apocalyptic number.

It is an amenable number.

11565170012452 is an abundant number, since it is smaller than the sum of its proper divisors (11605641234908).

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

11565170012452 is a wasteful number, since it uses less digits than its factorization.

11565170012452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313132 (or 313130 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 40.

Adding to 11565170012452 its reverse (25421007156511), we get a palindrome (36986177168963).

The spelling of 11565170012452 in words is "eleven trillion, five hundred sixty-five billion, one hundred seventy million, twelve thousand, four hundred fifty-two".