165594104004 has 48 divisors (see below), whose sum is σ = 447803790336. Its totient is φ = 46646224800.

The previous prime is 165594104003. The next prime is 165594104017. The reversal of 165594104004 is 400401495561.

It is not an unprimeable number, because it can be changed into a prime (165594104003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13876842 + ... + 13888769.

It is an arithmetic number, because the mean of its divisors is an integer number (9329245632).

Almost surely, 2^165594104004 is an apocalyptic number.

165594104004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165594104004 is an abundant number, since it is smaller than the sum of its proper divisors (282209686332).

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

165594104004 is a wasteful number, since it uses less digits than its factorization.

165594104004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27765696 (or 27765694 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 165594104004 its reverse (400401495561), we get a palindrome (565995599565).

The spelling of 165594104004 in words is "one hundred sixty-five billion, five hundred ninety-four million, one hundred four thousand, four".