561664140002132 has 12 divisors (see below), whose sum is σ = 1034644468425120. Its totient is φ = 266051434737816.

The previous prime is 561664140002129. The next prime is 561664140002137. The reversal of 561664140002132 is 231200041466165.

It is a self number, because there is not a number n which added to its sum of digits gives 561664140002132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561664140002137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3695158815728 + ... + 3695158815879.

It is an arithmetic number, because the mean of its divisors is an integer number (86220372368760).

Almost surely, 2^{561664140002132} is an apocalyptic number.

It is an amenable number.

561664140002132 is a deficient number, since it is larger than the sum of its proper divisors (472980328422988).

561664140002132 is a wasteful number, since it uses less digits than its factorization.

561664140002132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390317631630 (or 7390317631628 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 561664140002132 its reverse (231200041466165), we get a palindrome (792864181468297).

The spelling of 561664140002132 in words is "five hundred sixty-one trillion, six hundred sixty-four billion, one hundred forty million, two thousand, one hundred thirty-two".