165822827118 has 64 divisors (see below), whose sum is σ = 368292040704. Its totient is φ = 49448160000.

The previous prime is 165822827113. The next prime is 165822827119. The reversal of 165822827118 is 811728228561.

It is a super-2 number, since 2×165822827118² (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 (165822827113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311203 + ... + 654593.

It is an arithmetic number, because the mean of its divisors is an integer number (5754563136).

Almost surely, 2^165822827118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165822827118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184146020352).

165822827118 is an abundant number, since it is smaller than the sum of its proper divisors (202469213586).

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

165822827118 is a wasteful number, since it uses less digits than its factorization.

165822827118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343601.

The product of its digits is 860160, while the sum is 51.

The spelling of 165822827118 in words is "one hundred sixty-five billion, eight hundred twenty-two million, eight hundred twenty-seven thousand, one hundred eighteen".