110500550000561 has 4 divisors (see below), whose sum is σ = 126286342857792. Its totient is φ = 94714757143332.

The previous prime is 110500550000549. The next prime is 110500550000573. The reversal of 110500550000561 is 165000055005011.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (110500550000549) and next prime (110500550000573).

It is a cyclic number.

It is not a de Polignac number, because 110500550000561 - 2¹⁸ = 110500549738417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110500550009561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7892896428605 + ... + 7892896428618.

It is an arithmetic number, because the mean of its divisors is an integer number (31571585714448).

Almost surely, 2^{110500550000561} is an apocalyptic number.

It is an amenable number.

110500550000561 is a deficient number, since it is larger than the sum of its proper divisors (15785792857231).

110500550000561 is an equidigital number, since it uses as much as digits as its factorization.

110500550000561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15785792857230.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 110500550000561 in words is "one hundred ten trillion, five hundred billion, five hundred fifty million, five hundred sixty-one", and thus it is an aban number.