6105666000561 has 4 divisors (see below), whose sum is σ = 8140888000752. Its totient is φ = 4070444000372.

The previous prime is 6105666000557. The next prime is 6105666000563. The reversal of 6105666000561 is 1650006665016.

6105666000561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6105666000561 - 2² = 6105666000557 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6105666000563) 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, 1017611000091 + ... + 1017611000096.

It is an arithmetic number, because the mean of its divisors is an integer number (2035222000188).

Almost surely, 2^{6105666000561} is an apocalyptic number.

It is an amenable number.

6105666000561 is a deficient number, since it is larger than the sum of its proper divisors (2035222000191).

6105666000561 is a wasteful number, since it uses less digits than its factorization.

6105666000561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035222000190.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 6105666000561 in words is "six trillion, one hundred five billion, six hundred sixty-six million, five hundred sixty-one", and thus it is an aban number.