2144005664643 has 32 divisors (see below), whose sum is σ = 3281724057600. Its totient is φ = 1381981586400.

The previous prime is 2144005664617. The next prime is 2144005664651. The reversal of 2144005664643 is 3464665004412.

2144005664643 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 0 + 0 + 566 + 46 + 43 = 666.

It is not a de Polignac number, because 2144005664643 - 2¹⁰ = 2144005663619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2144005663643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226653 + ... + 2083118.

It is an arithmetic number, because the mean of its divisors is an integer number (102553876800).

Almost surely, 2^{2144005664643} is an apocalyptic number.

2144005664643 is a deficient number, since it is larger than the sum of its proper divisors (1137718392957).

2144005664643 is a wasteful number, since it uses less digits than its factorization.

2144005664643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310920 (or 2310914 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 2144005664643 in words is "two trillion, one hundred forty-four billion, five million, six hundred sixty-four thousand, six hundred forty-three".