105603613444 has 12 divisors (see below), whose sum is σ = 211207226944. Its totient is φ = 45258691464.

The previous prime is 105603613439. The next prime is 105603613447. The reversal of 105603613444 is 444316306501.

105603613444 is an admirable number.

It is a super-2 number, since 2×105603613444² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105603613447) 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, 1885778784 + ... + 1885778839.

Almost surely, 2^105603613444 is an apocalyptic number.

105603613444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

105603613444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

105603613444 is a wasteful number, since it uses less digits than its factorization.

105603613444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771557634 (or 3771557632 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 105603613444 its reverse (444316306501), we get a palindrome (549919919945).

The spelling of 105603613444 in words is "one hundred five billion, six hundred three million, six hundred thirteen thousand, four hundred forty-four".