561124321948120 has 32 divisors (see below), whose sum is σ = 1442891113581600. Its totient is φ = 192385481810688.

The previous prime is 561124321948103. The next prime is 561124321948279. The reversal of 561124321948120 is 21849123421165.

It is a happy number.

It is a super-3 number, since 3×561124321948120³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002007717485 + ... + 1002007718044.

It is an arithmetic number, because the mean of its divisors is an integer number (45090347299425).

Almost surely, 2^{561124321948120} is an apocalyptic number.

It is an amenable number.

561124321948120 is an abundant number, since it is smaller than the sum of its proper divisors (881766791633480).

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

561124321948120 is a wasteful number, since it uses less digits than its factorization.

561124321948120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004015435547 (or 2004015435543 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 561124321948120 in words is "five hundred sixty-one trillion, one hundred twenty-four billion, three hundred twenty-one million, nine hundred forty-eight thousand, one hundred twenty".