110111005005551 has 12 divisors (see below), whose sum is σ = 128150581423536. Its totient is φ = 94212624601920.

The previous prime is 110111005005511. The next prime is 110111005005587. The reversal of 110111005005551 is 155500500111011.

It is not a de Polignac number, because 110111005005551 - 2¹⁸ = 110111004743407 is a prime.

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 110111005005551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111005005511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26764948115 + ... + 26764952228.

It is an arithmetic number, because the mean of its divisors is an integer number (10679215118628).

Almost surely, 2^{110111005005551} is an apocalyptic number.

110111005005551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

110111005005551 is a deficient number, since it is larger than the sum of its proper divisors (18039576417985).

110111005005551 is a wasteful number, since it uses less digits than its factorization.

110111005005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53529900382 (or 53529900371 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 26.

Adding to 110111005005551 its reverse (155500500111011), we get a palindrome (265611505116562).

The spelling of 110111005005551 in words is "one hundred ten trillion, one hundred eleven billion, five million, five thousand, five hundred fifty-one".