664611202232 has 128 divisors (see below), whose sum is σ = 1298374272000. Its totient is φ = 318786263040.

The previous prime is 664611202207. The next prime is 664611202237. The reversal of 664611202232 is 232202116466.

It is a junction number, because it is equal to n+sod(n) for n = 664611202192 and 664611202201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664611202237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1708511894 + ... + 1708512282.

It is an arithmetic number, because the mean of its divisors is an integer number (10143549000).

Almost surely, 2^664611202232 is an apocalyptic number.

It is an amenable number.

664611202232 is a deficient number, since it is larger than the sum of its proper divisors (633763069768).

664611202232 is a wasteful number, since it uses less digits than its factorization.

664611202232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 664611202232 its reverse (232202116466), we get a palindrome (896813318698).

The spelling of 664611202232 in words is "six hundred sixty-four billion, six hundred eleven million, two hundred two thousand, two hundred thirty-two".