11663532012 has 24 divisors (see below), whose sum is σ = 29688990912. Its totient is φ = 3534403600.

The previous prime is 11663531983. The next prime is 11663532017. The reversal of 11663532012 is 21023536611.

It is not an unprimeable number, because it can be changed into a prime (11663532017) 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, 44179914 + ... + 44180177.

It is an arithmetic number, because the mean of its divisors is an integer number (1237041288).

Almost surely, 2^11663532012 is an apocalyptic number.

11663532012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11663532012 is an abundant number, since it is smaller than the sum of its proper divisors (18025458900).

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

11663532012 is a wasteful number, since it uses less digits than its factorization.

11663532012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88360109 (or 88360107 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 11663532012 in words is "eleven billion, six hundred sixty-three million, five hundred thirty-two thousand, twelve".