3665854845184 has 72 divisors (see below), whose sum is σ = 8368272114048. Its totient is φ = 1570039726080.

The previous prime is 3665854845179. The next prime is 3665854845229. The reversal of 3665854845184 is 4815484585663.

It is a happy number.

It is an unprimeable number.

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, 2030784 + ... + 3384640.

It is an arithmetic number, because the mean of its divisors is an integer number (116226001584).

Almost surely, 2^{3665854845184} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3665854845184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4184136057024).

3665854845184 is an abundant number, since it is smaller than the sum of its proper divisors (4702417268864).

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

3665854845184 is a wasteful number, since it uses less digits than its factorization.

3665854845184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355391 (or 1355377 counting only the distinct ones).

The product of its digits is 442368000, while the sum is 67.

The spelling of 3665854845184 in words is "three trillion, six hundred sixty-five billion, eight hundred fifty-four million, eight hundred forty-five thousand, one hundred eighty-four".