165055516610000 has 100 divisors (see below), whose sum is σ = 399708114960000. Its totient is φ = 66006973296000.

The previous prime is 165055516609993. The next prime is 165055516610029. The reversal of 165055516610000 is 16615550561.

It is a tau number, because it is divible by the number of its divisors (100).

It is a self number, because there is not a number n which added to its sum of digits gives 165055516610000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41488001 + ... + 45291999.

It is an arithmetic number, because the mean of its divisors is an integer number (3997081149600).

Almost surely, 2^{165055516610000} is an apocalyptic number.

165055516610000 is a gapful number since it is divisible by the number (10) 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 165055516610000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199854057480000).

165055516610000 is an abundant number, since it is smaller than the sum of its proper divisors (234652598350000).

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

165055516610000 is an equidigital number, since it uses as much as digits as its factorization.

165055516610000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808366 (or 3808345 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 165055516610000 in words is "one hundred sixty-five trillion, fifty-five billion, five hundred sixteen million, six hundred ten thousand".