11664507732 has 24 divisors (see below), whose sum is σ = 27231204000. Its totient is φ = 3886166496.

The previous prime is 11664507731. The next prime is 11664507781. The reversal of 11664507732 is 23770546611.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11664507731) 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, 225982 + ... + 272757.

It is an arithmetic number, because the mean of its divisors is an integer number (1134633500).

Almost surely, 2^11664507732 is an apocalyptic number.

11664507732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11664507732 is an abundant number, since it is smaller than the sum of its proper divisors (15566696268).

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

11664507732 is a wasteful number, since it uses less digits than its factorization.

11664507732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500695 (or 500693 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 11664507732 in words is "eleven billion, six hundred sixty-four million, five hundred seven thousand, seven hundred thirty-two".