11680245531 has 24 divisors (see below), whose sum is σ = 17339344880. Its totient is φ = 7572470976.

The previous prime is 11680245529. The next prime is 11680245557. The reversal of 11680245531 is 13554208611.

11680245531 is a `hidden beast` number, since 1 + 1 + 6 + 80 + 2 + 45 + 531 = 666.

11680245531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11680245531 - 2¹ = 11680245529 is a prime.

It is a super-2 number, since 2×11680245531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11680245331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22725 + ... + 154521.

Almost surely, 2^11680245531 is an apocalyptic number.

11680245531 is a deficient number, since it is larger than the sum of its proper divisors (5659099349).

11680245531 is a wasteful number, since it uses less digits than its factorization.

11680245531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132075 (or 132072 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 11680245531 in words is "eleven billion, six hundred eighty million, two hundred forty-five thousand, five hundred thirty-one".