165166488 has 72 divisors (see below), whose sum is σ = 455726700. Its totient is φ = 54040224.

The previous prime is 165166451. The next prime is 165166489. The reversal of 165166488 is 884661561.

165166488 is a `hidden beast` number, since 1 + 6 + 5 + 166 + 488 = 666.

165166488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165166489) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 250303 + ... + 250961.

Almost surely, 2^165166488 is an apocalyptic number.

165166488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165166488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227863350).

165166488 is an abundant number, since it is smaller than the sum of its proper divisors (290560212).

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

165166488 is a wasteful number, since it uses less digits than its factorization.

165166488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 723 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 165166488 is about 12851.7114813553. The cubic root of 165166488 is about 548.6650688828.

The spelling of 165166488 in words is "one hundred sixty-five million, one hundred sixty-six thousand, four hundred eighty-eight".