1110605105561 has 8 divisors (see below), whose sum is σ = 1296268573440. Its totient is φ = 931693036608.

The previous prime is 1110605105531. The next prime is 1110605105579. The reversal of 1110605105561 is 1655015060111.

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

It is a cyclic number.

It is not a de Polignac number, because 1110605105561 - 2²⁶ = 1110537996697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110605105521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687849376 + ... + 1687850033.

It is an arithmetic number, because the mean of its divisors is an integer number (162033571680).

Almost surely, 2^{1110605105561} is an apocalyptic number.

It is an amenable number.

1110605105561 is a deficient number, since it is larger than the sum of its proper divisors (185663467879).

1110605105561 is an equidigital number, since it uses as much as digits as its factorization.

1110605105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375699463.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 1110605105561 in words is "one trillion, one hundred ten billion, six hundred five million, one hundred five thousand, five hundred sixty-one".