110605327561 has 4 divisors (see below), whose sum is σ = 110697423124. Its totient is φ = 110513232000.

The previous prime is 110605327531. The next prime is 110605327619. The reversal of 110605327561 is 165723506011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44687846025 + 65917481536 = 211395^2 + 256744^2 .

It is a cyclic number.

It is not a de Polignac number, because 110605327561 - 2¹⁹ = 110604803273 is a prime.

It is a super-2 number, since 2×110605327561² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110605327561.

It is not an unprimeable number, because it can be changed into a prime (110605327501) 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, 46045980 + ... + 46048381.

It is an arithmetic number, because the mean of its divisors is an integer number (27674355781).

Almost surely, 2^110605327561 is an apocalyptic number.

It is an amenable number.

110605327561 is a deficient number, since it is larger than the sum of its proper divisors (92095563).

110605327561 is an equidigital number, since it uses as much as digits as its factorization.

110605327561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92095562.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 110605327561 in words is "one hundred ten billion, six hundred five million, three hundred twenty-seven thousand, five hundred sixty-one".