44103421555 has 24 divisors (see below), whose sum is σ = 56260824912. Its totient is φ = 33183416832.

The previous prime is 44103421529. The next prime is 44103421567. The reversal of 44103421555 is 55512430144.

It is not a de Polignac number, because 44103421555 - 2¹³ = 44103413363 is a prime.

It is a super-2 number, since 2×44103421555² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44103421555.

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 23 ways as a sum of consecutive naturals, for example, 2147164 + ... + 2167606.

It is an arithmetic number, because the mean of its divisors is an integer number (2344201038).

Almost surely, 2^44103421555 is an apocalyptic number.

44103421555 is a deficient number, since it is larger than the sum of its proper divisors (12157403357).

44103421555 is a wasteful number, since it uses less digits than its factorization.

44103421555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21975 (or 21958 counting only the distinct ones).

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

Adding to 44103421555 its reverse (55512430144), we get a palindrome (99615851699).

The spelling of 44103421555 in words is "forty-four billion, one hundred three million, four hundred twenty-one thousand, five hundred fifty-five".