165130532388 has 144 divisors (see below), whose sum is σ = 463128760640. Its totient is φ = 51291273600.

The previous prime is 165130532387. The next prime is 165130532389. The reversal of 165130532388 is 883235031561.

165130532388 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 30 + 532 + 3 + 88 = 666.

165130532388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165130532387) and next prime (165130532389).

It is not an unprimeable number, because it can be changed into a prime (165130532387) 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 47 ways as a sum of consecutive naturals, for example, 1053258 + ... + 1199838.

Almost surely, 2^165130532388 is an apocalyptic number.

165130532388 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 165130532388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231564380320).

165130532388 is an abundant number, since it is smaller than the sum of its proper divisors (297998228252).

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

165130532388 is a wasteful number, since it uses less digits than its factorization.

165130532388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146680 (or 146666 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 165130532388 in words is "one hundred sixty-five billion, one hundred thirty million, five hundred thirty-two thousand, three hundred eighty-eight".