1659020844439 has 8 divisors (see below), whose sum is σ = 1906499093408. Its totient is φ = 1414161413280.

The previous prime is 1659020844407. The next prime is 1659020844443. The reversal of 1659020844439 is 9344480209561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1659020844439 - 2⁵ = 1659020844407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1659020844439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659020845439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654703092 + ... + 654705625.

It is an arithmetic number, because the mean of its divisors is an integer number (238312386676).

Almost surely, 2^{1659020844439} is an apocalyptic number.

1659020844439 is a deficient number, since it is larger than the sum of its proper divisors (247478248969).

1659020844439 is a wasteful number, since it uses less digits than its factorization.

1659020844439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309408905.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 1659020844439 in words is "one trillion, six hundred fifty-nine billion, twenty million, eight hundred forty-four thousand, four hundred thirty-nine".