1442663321055 has 64 divisors (see below), whose sum is σ = 2566942949376. Its totient is φ = 686009744000.

The previous prime is 1442663321041. The next prime is 1442663321131. The reversal of 1442663321055 is 5501233662441.

It is not a de Polignac number, because 1442663321055 - 2¹⁸ = 1442663058911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1442663320998 and 1442663321016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1915192 + ... + 2559938.

It is an arithmetic number, because the mean of its divisors is an integer number (40108483584).

Almost surely, 2^{1442663321055} is an apocalyptic number.

1442663321055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1442663321055 is a deficient number, since it is larger than the sum of its proper divisors (1124279628321).

1442663321055 is a wasteful number, since it uses less digits than its factorization.

1442663321055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645028.

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 1442663321055 its reverse (5501233662441), we get a palindrome (6943896983496).

The spelling of 1442663321055 in words is "one trillion, four hundred forty-two billion, six hundred sixty-three million, three hundred twenty-one thousand, fifty-five".