1669749119584 has 192 divisors, whose sum is σ = 4237937915904. Its totient is φ = 629431013376.

The previous prime is 1669749119579. The next prime is 1669749119587. The reversal of 1669749119584 is 4859119479661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669749119587) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 17567292 + ... + 17662084.

It is an arithmetic number, because the mean of its divisors is an integer number (22072593312).

Almost surely, 2^{1669749119584} is an apocalyptic number.

1669749119584 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669749119584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2118968957952).

1669749119584 is an abundant number, since it is smaller than the sum of its proper divisors (2568188796320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1669749119584 is a wasteful number, since it uses less digits than its factorization.

1669749119584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95109 (or 95101 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 70.

The spelling of 1669749119584 in words is "one trillion, six hundred sixty-nine billion, seven hundred forty-nine million, one hundred nineteen thousand, five hundred eighty-four".