329081616 has 100 divisors (see below), whose sum is σ = 983302144. Its totient is φ = 106142400.

The previous prime is 329081609. The next prime is 329081617. The reversal of 329081616 is 616180923.

329081616 is a `hidden beast` number, since 32 + 9 + 0 + 8 + 1 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (329081617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36081 + ... + 44271.

Almost surely, 2^329081616 is an apocalyptic number.

329081616 is a gapful number since it is divisible by the number (36) 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 329081616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491651072).

329081616 is an abundant number, since it is smaller than the sum of its proper divisors (654220528).

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

329081616 is a wasteful number, since it uses less digits than its factorization.

329081616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242 (or 8227 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 329081616 is about 18140.6068255723. The cubic root of 329081616 is about 690.4006746604.

The spelling of 329081616 in words is "three hundred twenty-nine million, eighty-one thousand, six hundred sixteen".