165446130 has 64 divisors (see below), whose sum is σ = 416130048. Its totient is φ = 42018240.

The previous prime is 165446123. The next prime is 165446137. The reversal of 165446130 is 31644561.

165446130 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 (165446123) and next prime (165446137).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (165446137) 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, 239085 + ... + 239775.

It is an arithmetic number, because the mean of its divisors is an integer number (6502032).

Almost surely, 2^165446130 is an apocalyptic number.

165446130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165446130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208065024).

165446130 is an abundant number, since it is smaller than the sum of its proper divisors (250683918).

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

165446130 is a wasteful number, since it uses less digits than its factorization.

165446130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 165446130 is about 12862.5864428582. The cubic root of 165446130 is about 548.9745410406.

The spelling of 165446130 in words is "one hundred sixty-five million, four hundred forty-six thousand, one hundred thirty".