110555386280561 has 4 divisors (see below), whose sum is σ = 110559275133300. Its totient is φ = 110551497427824.

The previous prime is 110555386280453. The next prime is 110555386280569. The reversal of 110555386280561 is 165082683555011.

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 40885230952336 + 69670155328225 = 6394156^2 + 8346865^2 .

It is a cyclic number.

It is not a de Polignac number, because 110555386280561 - 2²² = 110555382086257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110555386280497 and 110555386280506.

It is not an unprimeable number, because it can be changed into a prime (110555386280569) 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, 1944383726 + ... + 1944440583.

It is an arithmetic number, because the mean of its divisors is an integer number (27639818783325).

Almost surely, 2^{110555386280561} is an apocalyptic number.

It is an amenable number.

110555386280561 is a deficient number, since it is larger than the sum of its proper divisors (3888852739).

110555386280561 is an equidigital number, since it uses as much as digits as its factorization.

110555386280561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888852738.

The product of its (nonzero) digits is 8640000, while the sum is 56.

The spelling of 110555386280561 in words is "one hundred ten trillion, five hundred fifty-five billion, three hundred eighty-six million, two hundred eighty thousand, five hundred sixty-one".