105110556005551 has 4 divisors (see below), whose sum is σ = 105110741014552. Its totient is φ = 105110370996552.

The previous prime is 105110556005531. The next prime is 105110556005579. The reversal of 105110556005551 is 155500655011501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 105110556005551 - 2¹⁵ = 105110555972783 is a prime.

It is a super-2 number, since 2×105110556005551² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105110556005531) 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, 91649661 + ... + 92789446.

It is an arithmetic number, because the mean of its divisors is an integer number (26277685253638).

Almost surely, 2^{105110556005551} is an apocalyptic number.

105110556005551 is a deficient number, since it is larger than the sum of its proper divisors (185009001).

105110556005551 is an equidigital number, since it uses as much as digits as its factorization.

105110556005551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185009000.

The product of its (nonzero) digits is 93750, while the sum is 40.

The spelling of 105110556005551 in words is "one hundred five trillion, one hundred ten billion, five hundred fifty-six million, five thousand, five hundred fifty-one".