105500310543 has 8 divisors (see below), whose sum is σ = 156296756400. Its totient is φ = 70333540344.

The previous prime is 105500310527. The next prime is 105500310599. The reversal of 105500310543 is 345013005501.

105500310543 is a `hidden beast` number, since 1 + 0 + 550 + 0 + 3 + 105 + 4 + 3 = 666.

It is not a de Polignac number, because 105500310543 - 2⁴ = 105500310527 is a prime.

It is a super-2 number, since 2×105500310543² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3907418909 = 105500310543 / (1 + 0 + 5 + 5 + 0 + 0 + 3 + 1 + 0 + 5 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105500330543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953709428 + ... + 1953709481.

It is an arithmetic number, because the mean of its divisors is an integer number (19537094550).

Almost surely, 2^105500310543 is an apocalyptic number.

105500310543 is a deficient number, since it is larger than the sum of its proper divisors (50796445857).

105500310543 is an equidigital number, since it uses as much as digits as its factorization.

105500310543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907418918 (or 3907418912 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 105500310543 in words is "one hundred five billion, five hundred million, three hundred ten thousand, five hundred forty-three".