165089884881 has 8 divisors (see below), whose sum is σ = 220217991840. Its totient is φ = 110010850592.

The previous prime is 165089884769. The next prime is 165089884889. The reversal of 165089884881 is 188488980561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165089884881 - 2⁷ = 165089884753 is a prime.

It is a super-2 number, since 2×165089884881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165089884889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12260316 + ... + 12273773.

It is an arithmetic number, because the mean of its divisors is an integer number (27527248980).

Almost surely, 2^165089884881 is an apocalyptic number.

It is an amenable number.

165089884881 is a deficient number, since it is larger than the sum of its proper divisors (55128106959).

165089884881 is a wasteful number, since it uses less digits than its factorization.

165089884881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24536335.

The product of its (nonzero) digits is 35389440, while the sum is 66.

The spelling of 165089884881 in words is "one hundred sixty-five billion, eighty-nine million, eight hundred eighty-four thousand, eight hundred eighty-one".