2144320441445 has 32 divisors (see below), whose sum is σ = 3167644784640. Its totient is φ = 1357006245120.

The previous prime is 2144320441429. The next prime is 2144320441477. The reversal of 2144320441445 is 5441440234412.

It is not a de Polignac number, because 2144320441445 - 2⁴ = 2144320441429 is a prime.

It is a super-2 number, since 2×2144320441445² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2144320441399 and 2144320441408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1753580 + ... + 2713610.

It is an arithmetic number, because the mean of its divisors is an integer number (98988899520).

Almost surely, 2^{2144320441445} is an apocalyptic number.

It is an amenable number.

2144320441445 is a deficient number, since it is larger than the sum of its proper divisors (1023324343195).

2144320441445 is a wasteful number, since it uses less digits than its factorization.

2144320441445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964965.

The product of its (nonzero) digits is 245760, while the sum is 38.

Adding to 2144320441445 its reverse (5441440234412), we get a palindrome (7585760675857).

The spelling of 2144320441445 in words is "two trillion, one hundred forty-four billion, three hundred twenty million, four hundred forty-one thousand, four hundred forty-five".