165089884880 has 20 divisors (see below), whose sum is σ = 383833982532. Its totient is φ = 66035953920.

The previous prime is 165089884769. The next prime is 165089884889. The reversal of 165089884880 is 88488980561.

165089884880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 106260352576 + 58829532304 = 325976^2 + 242548^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×165089884880² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165089884889) 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 3 ways as a sum of consecutive naturals, for example, 1031811701 + ... + 1031811860.

Almost surely, 2^165089884880 is an apocalyptic number.

165089884880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165089884880 is an abundant number, since it is smaller than the sum of its proper divisors (218744097652).

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

165089884880 is a wasteful number, since it uses less digits than its factorization.

165089884880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063623574 (or 2063623568 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 65.

The spelling of 165089884880 in words is "one hundred sixty-five billion, eighty-nine million, eight hundred eighty-four thousand, eight hundred eighty".