165081882 has 96 divisors (see below), whose sum is σ = 404490240. Its totient is φ = 44724960.

The previous prime is 165081869. The next prime is 165081893. The reversal of 165081882 is 288180561.

165081882 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165081882.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 537573 + ... + 537879.

It is an arithmetic number, because the mean of its divisors is an integer number (4213440).

Almost surely, 2^165081882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165081882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202245120).

165081882 is an abundant number, since it is smaller than the sum of its proper divisors (239408358).

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

165081882 is a wasteful number, since it uses less digits than its factorization.

165081882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 165081882 is about 12848.4194358684. The cubic root of 165081882 is about 548.5713689120.

The spelling of 165081882 in words is "one hundred sixty-five million, eighty-one thousand, eight hundred eighty-two".