561340441240 has 32 divisors (see below), whose sum is σ = 1286846488080. Its totient is φ = 220299644032.

The previous prime is 561340441183. The next prime is 561340441261. The reversal of 561340441240 is 42144043165.

It is a junction number, because it is equal to n+sod(n) for n = 561340441196 and 561340441205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132389494 + ... + 132393733.

Almost surely, 2^561340441240 is an apocalyptic number.

It is an amenable number.

561340441240 is an abundant number, since it is smaller than the sum of its proper divisors (725506046840).

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

561340441240 is a wasteful number, since it uses less digits than its factorization.

561340441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264783291 (or 264783287 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 561340441240 in words is "five hundred sixty-one billion, three hundred forty million, four hundred forty-one thousand, two hundred forty".