165989161102848 has 480 divisors, whose sum is σ = 478011030621696. Its totient is φ = 51154193350656.

The previous prime is 165989161102841. The next prime is 165989161102879. The reversal of 165989161102848 is 848201161989561.

It is a super-2 number, since 2×165989161102848² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165989161102841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9199634115 + ... + 9199652157.

Almost surely, 2^{165989161102848} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165989161102848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239005515310848).

165989161102848 is an abundant number, since it is smaller than the sum of its proper divisors (312021869518848).

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

165989161102848 is a wasteful number, since it uses less digits than its factorization.

165989161102848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18502 (or 18467 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 69.

The spelling of 165989161102848 in words is "one hundred sixty-five trillion, nine hundred eighty-nine billion, one hundred sixty-one million, one hundred two thousand, eight hundred forty-eight".