561163423116 has 24 divisors (see below), whose sum is σ = 1309580468784. Its totient is φ = 187026024640.

The previous prime is 561163423109. The next prime is 561163423141. The reversal of 561163423116 is 611324361165.

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, 3473955 + ... + 3631898.

It is an arithmetic number, because the mean of its divisors is an integer number (54565852866).

Almost surely, 2^561163423116 is an apocalyptic number.

It is an amenable number.

561163423116 is an abundant number, since it is smaller than the sum of its proper divisors (748417045668).

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

561163423116 is a wasteful number, since it uses less digits than its factorization.

561163423116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112441 (or 7112439 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The spelling of 561163423116 in words is "five hundred sixty-one billion, one hundred sixty-three million, four hundred twenty-three thousand, one hundred sixteen".