11561680027 has 8 divisors (see below), whose sum is σ = 11600064000. Its totient is φ = 11523326784.

The previous prime is 11561679971. The next prime is 11561680037. The reversal of 11561680027 is 72008616511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11561680027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11561680037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931599 + ... + 943927.

It is an arithmetic number, because the mean of its divisors is an integer number (1450008000).

Almost surely, 2^11561680027 is an apocalyptic number.

11561680027 is a deficient number, since it is larger than the sum of its proper divisors (38383973).

11561680027 is a wasteful number, since it uses less digits than its factorization.

11561680027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15365.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 11561680027 in words is "eleven billion, five hundred sixty-one million, six hundred eighty thousand, twenty-seven".