165108195000 has 960 divisors, whose sum is σ = 687155040000. Its totient is φ = 35689248000.

The previous prime is 165108194941. The next prime is 165108195041. The reversal of 165108195000 is 591801561.

165108195000 is a `hidden beast` number, since 1 + 65 + 10 + 81 + 9 + 500 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 293264719 + ... + 293265281.

It is an arithmetic number, because the mean of its divisors is an integer number (715786500).

Almost surely, 2^165108195000 is an apocalyptic number.

165108195000 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 165108195000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343577520000).

165108195000 is an abundant number, since it is smaller than the sum of its proper divisors (522046845000).

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

165108195000 is a wasteful number, since it uses less digits than its factorization.

165108195000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 36.

Adding to 165108195000 its reverse (591801561), we get a palindrome (165699996561).

The spelling of 165108195000 in words is "one hundred sixty-five billion, one hundred eight million, one hundred ninety-five thousand".