561066996288 has 28 divisors (see below), whose sum is σ = 1484489761520. Its totient is φ = 187022332032.

The previous prime is 561066996263. The next prime is 561066996289. The reversal of 561066996288 is 882699660165.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (561066996289) 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, 1461111778 + ... + 1461112161.

Almost surely, 2^561066996288 is an apocalyptic number.

It is an amenable number.

561066996288 is an abundant number, since it is smaller than the sum of its proper divisors (923422765232).

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

561066996288 is a wasteful number, since it uses less digits than its factorization.

561066996288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922223954 (or 2922223944 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 561066996288 in words is "five hundred sixty-one billion, sixty-six million, nine hundred ninety-six thousand, two hundred eighty-eight".