105543051055 has 12 divisors (see below), whose sum is σ = 137143515960. Its totient is φ = 77939483232.

The previous prime is 105543051049. The next prime is 105543051067. The reversal of 105543051055 is 550150345501.

It is not a de Polignac number, because 105543051055 - 2⁵ = 105543051023 is a prime.

It is a super-2 number, since 2×105543051055² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105543051055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62450665 + ... + 62452354.

It is an arithmetic number, because the mean of its divisors is an integer number (11428626330).

Almost surely, 2^105543051055 is an apocalyptic number.

105543051055 is a deficient number, since it is larger than the sum of its proper divisors (31600464905).

105543051055 is a wasteful number, since it uses less digits than its factorization.

105543051055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124903050 (or 124903037 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

Adding to 105543051055 its reverse (550150345501), we get a palindrome (655693396556).

The spelling of 105543051055 in words is "one hundred five billion, five hundred forty-three million, fifty-one thousand, fifty-five".