165330052720 has 160 divisors (see below), whose sum is σ = 441412747776. Its totient is φ = 56413516800.

The previous prime is 165330052687. The next prime is 165330052747. The reversal of 165330052720 is 27250033561.

165330052720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 151539375 + ... + 151540465.

Almost surely, 2^165330052720 is an apocalyptic number.

165330052720 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 165330052720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220706373888).

165330052720 is an abundant number, since it is smaller than the sum of its proper divisors (276082695056).

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

165330052720 is a wasteful number, since it uses less digits than its factorization.

165330052720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 165330052720 in words is "one hundred sixty-five billion, three hundred thirty million, fifty-two thousand, seven hundred twenty".