105105523444 has 6 divisors (see below), whose sum is σ = 183934666034. Its totient is φ = 52552761720.

The previous prime is 105105523427. The next prime is 105105523489. The reversal of 105105523444 is 444325501501.

It can be written as a sum of positive squares in only one way, i.e., 101896300944 + 3209222500 = 319212^2 + 56650^2 .

It is a super-2 number, since 2×105105523444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13138190427 + ... + 13138190434.

Almost surely, 2^105105523444 is an apocalyptic number.

It is an amenable number.

105105523444 is a deficient number, since it is larger than the sum of its proper divisors (78829142590).

105105523444 is a wasteful number, since it uses less digits than its factorization.

105105523444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26276380865 (or 26276380863 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 105105523444 in words is "one hundred five billion, one hundred five million, five hundred twenty-three thousand, four hundred forty-four".