561566051076 has 12 divisors (see below), whose sum is σ = 1310320785872. Its totient is φ = 187188683688.

The previous prime is 561566051051. The next prime is 561566051077. The reversal of 561566051076 is 670150665165.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (561566051077) 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, 23398585450 + ... + 23398585473.

Almost surely, 2^561566051076 is an apocalyptic number.

It is an amenable number.

561566051076 is an abundant number, since it is smaller than the sum of its proper divisors (748754734796).

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

561566051076 is a wasteful number, since it uses less digits than its factorization.

561566051076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46797170930 (or 46797170928 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 561566051076 in words is "five hundred sixty-one billion, five hundred sixty-six million, fifty-one thousand, seventy-six".