561105556106 has 8 divisors (see below), whose sum is σ = 885956141280. Its totient is φ = 265786842348.

The previous prime is 561105556051. The next prime is 561105556153. The reversal of 561105556106 is 601655501165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7382967806 + ... + 7382967881.

It is an arithmetic number, because the mean of its divisors is an integer number (110744517660).

Almost surely, 2^561105556106 is an apocalyptic number.

561105556106 is a deficient number, since it is larger than the sum of its proper divisors (324850585174).

561105556106 is a wasteful number, since it uses less digits than its factorization.

561105556106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14765935708.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 561105556106 in words is "five hundred sixty-one billion, one hundred five million, five hundred fifty-six thousand, one hundred six".