105651768444 has 24 divisors (see below), whose sum is σ = 250562119248. Its totient is φ = 34639923840.

The previous prime is 105651768389. The next prime is 105651768479. The reversal of 105651768444 is 444867156501.

It is a super-2 number, since 2×105651768444² (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 in 7 ways as a sum of consecutive naturals, for example, 72165777 + ... + 72167240.

It is an arithmetic number, because the mean of its divisors is an integer number (10440088302).

Almost surely, 2^105651768444 is an apocalyptic number.

It is an amenable number.

105651768444 is an abundant number, since it is smaller than the sum of its proper divisors (144910350804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105651768444 is a wasteful number, since it uses less digits than its factorization.

105651768444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144333085 (or 144333083 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 105651768444 in words is "one hundred five billion, six hundred fifty-one million, seven hundred sixty-eight thousand, four hundred forty-four".