664241132 has 12 divisors (see below), whose sum is σ = 1162735896. Its totient is φ = 332030880.

The previous prime is 664241117. The next prime is 664241141. The reversal of 664241132 is 231142466.

It is a junction number, because it is equal to n+sod(n) for n = 664241095 and 664241104.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4094 + ... + 36677.

It is an arithmetic number, because the mean of its divisors is an integer number (96894658).

Almost surely, 2^664241132 is an apocalyptic number.

It is an amenable number.

664241132 is a deficient number, since it is larger than the sum of its proper divisors (498494764).

664241132 is a wasteful number, since it uses less digits than its factorization.

664241132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44848 (or 44846 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 664241132 is about 25772.8758969580. The cubic root of 664241132 is about 872.5197274161.

Adding to 664241132 its reverse (231142466), we get a palindrome (895383598).

It can be divided in two parts, 6642 and 41132, that added together give a palindrome (47774).

The spelling of 664241132 in words is "six hundred sixty-four million, two hundred forty-one thousand, one hundred thirty-two".