165306330 has 48 divisors (see below), whose sum is σ = 491197824. Its totient is φ = 37784160.

The previous prime is 165306263. The next prime is 165306391. The reversal of 165306330 is 33603561.

165306330 is a `hidden beast` number, since 1 + 653 + 0 + 6 + 3 + 3 + 0 = 666.

165306330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 165306294 and 165306303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130566 + ... + 131825.

It is an arithmetic number, because the mean of its divisors is an integer number (10233288).

Almost surely, 2^165306330 is an apocalyptic number.

165306330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165306330 is an abundant number, since it is smaller than the sum of its proper divisors (325891494).

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

165306330 is a wasteful number, since it uses less digits than its factorization.

165306330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262411 (or 262408 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 165306330 is about 12857.1509285689. The cubic root of 165306330 is about 548.8198718286.

Adding to 165306330 its reverse (33603561), we get a palindrome (198909891).

The spelling of 165306330 in words is "one hundred sixty-five million, three hundred six thousand, three hundred thirty".