165053553222404 has 96 divisors (see below), whose sum is σ = 363810258846720. Its totient is φ = 63648124848000.

The previous prime is 165053553222403. The next prime is 165053553222433. The reversal of 165053553222404 is 404222355350561.

It is not an unprimeable number, because it can be changed into a prime (165053553222403) 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 31 ways as a sum of consecutive naturals, for example, 34290179 + ... + 38806229.

It is an arithmetic number, because the mean of its divisors is an integer number (3789690196320).

Almost surely, 2^{165053553222404} is an apocalyptic number.

165053553222404 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 165053553222404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181905129423360).

165053553222404 is an abundant number, since it is smaller than the sum of its proper divisors (198756705624316).

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

165053553222404 is a wasteful number, since it uses less digits than its factorization.

165053553222404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517289 (or 4517287 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 47.

The spelling of 165053553222404 in words is "one hundred sixty-five trillion, fifty-three billion, five hundred fifty-three million, two hundred twenty-two thousand, four hundred four".