11566065042 has 48 divisors (see below), whose sum is σ = 28658964672. Its totient is φ = 3302376480.

The previous prime is 11566064999. The next prime is 11566065047. The reversal of 11566065042 is 24056066511.

11566065042 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 606 + 5 + 0 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11566064988 and 11566065006.

It is not an unprimeable number, because it can be changed into a prime (11566065047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162928 + ... + 222884.

It is an arithmetic number, because the mean of its divisors is an integer number (597061764).

Almost surely, 2^11566065042 is an apocalyptic number.

11566065042 is an abundant number, since it is smaller than the sum of its proper divisors (17092899630).

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

11566065042 is a wasteful number, since it uses less digits than its factorization.

11566065042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61503 (or 61500 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 11566065042 in words is "eleven billion, five hundred sixty-six million, sixty-five thousand, forty-two".