11548382661 has 24 divisors (see below), whose sum is σ = 16989972480. Its totient is φ = 7557447456.

The previous prime is 11548382623. The next prime is 11548382719. The reversal of 11548382661 is 16628384511.

11548382661 is a `hidden beast` number, since 11 + 548 + 38 + 2 + 6 + 61 = 666.

It is not a de Polignac number, because 11548382661 - 2⁶ = 11548382597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11548382611) 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, 76060 + ... + 169946.

It is an arithmetic number, because the mean of its divisors is an integer number (707915520).

Almost surely, 2^11548382661 is an apocalyptic number.

It is an amenable number.

11548382661 is a deficient number, since it is larger than the sum of its proper divisors (5441589819).

11548382661 is a wasteful number, since it uses less digits than its factorization.

11548382661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94145 (or 94142 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 11548382661 in words is "eleven billion, five hundred forty-eight million, three hundred eighty-two thousand, six hundred sixty-one".